auto merge of #4682 : servo/servo/to_owned, r=jdm

into_string has been removed from Rust.

67 files changed, 473 insertions, 383 deletions

diff --git a/components/gfx/font.rs b/components/gfx/font.rs
index 3c6379988bc..708a6f4b93d 100644
--- a/components/gfx/font.rs
+++ b/components/gfx/font.rs
@@ -3,6 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use geom::{Point2D, Rect, Size2D};
+use std::borrow::ToOwned;
 use std::mem;
 use std::slice;
 use std::rc::Rc;
@@ -162,7 +163,7 @@ impl Font {
 
         let glyphs = Arc::new(glyphs);
         self.shape_cache.insert(ShapeCacheEntry {
-            text: text.into_string(),
+            text: text.to_owned(),
             options: *options,
         }, glyphs.clone());
         glyphs
diff --git a/components/gfx/font_context.rs b/components/gfx/font_context.rs
index 47764026458..e439d482f64 100644
--- a/components/gfx/font_context.rs
+++ b/components/gfx/font_context.rs
@@ -17,6 +17,7 @@ use servo_util::smallvec::{SmallVec, SmallVec8};
 use servo_util::geometry::Au;
 use servo_util::arc_ptr_eq;
 
+use std::borrow::ToOwned;
 use std::rc::Rc;
 use std::cell::RefCell;
 use std::sync::Arc;
@@ -168,7 +169,7 @@ impl FontContext {
 
             if !cache_hit {
                 let font_template = self.font_cache_task.get_font_template(family.name()
-                                                                                 .into_string(),
+                                                                                 .to_owned(),
                                                                            desc.clone());
                 match font_template {
                     Some(font_template) => {
@@ -178,14 +179,14 @@ impl FontContext {
                                                                   style.font_variant);
                         let layout_font = Rc::new(RefCell::new(layout_font));
                         self.layout_font_cache.push(LayoutFontCacheEntry {
-                            family: family.name().into_string(),
+                            family: family.name().to_owned(),
                             font: Some(layout_font.clone()),
                         });
                         fonts.push(layout_font);
                     }
                     None => {
                         self.layout_font_cache.push(LayoutFontCacheEntry {
-                            family: family.name().into_string(),
+                            family: family.name().to_owned(),
                             font: None,
                         });
                     }
diff --git a/components/gfx/font_template.rs b/components/gfx/font_template.rs
index 2ee658009f8..833495d2177 100644
--- a/components/gfx/font_template.rs
+++ b/components/gfx/font_template.rs
@@ -7,6 +7,7 @@ use platform::font_context::FontContextHandle;
 use platform::font::FontHandle;
 use platform::font_template::FontTemplateData;
 
+use std::borrow::ToOwned;
 use std::sync::{Arc, Weak};
 use font::FontHandleMethods;
 
@@ -68,7 +69,7 @@ impl FontTemplate {
         };
 
         FontTemplate {
-            identifier: identifier.into_string(),
+            identifier: identifier.to_owned(),
             descriptor: None,
             weak_ref: maybe_weak_ref,
             strong_ref: maybe_strong_ref,
diff --git a/components/gfx/platform/freetype/font_list.rs b/components/gfx/platform/freetype/font_list.rs
index 4c061e88b13..31f7bc6aeb1 100644
--- a/components/gfx/platform/freetype/font_list.rs
+++ b/components/gfx/platform/freetype/font_list.rs
@@ -22,6 +22,7 @@ use fontconfig::fontconfig::{
 
 use libc;
 use libc::c_int;
+use std::borrow::ToOwned;
 use std::ptr;
 use std::string::String;
 
@@ -127,13 +128,13 @@ pub fn get_system_default_family(generic_name: &str) -> Option<String> {
 #[cfg(target_os="linux")]
 pub fn get_last_resort_font_families() -> Vec<String> {
     vec!(
-        "Fira Sans".into_string(),
-        "DejaVu Sans".into_string(),
-        "Arial".into_string()
+        "Fira Sans".to_owned(),
+        "DejaVu Sans".to_owned(),
+        "Arial".to_owned()
     )
 }
 
 #[cfg(target_os="android")]
 pub fn get_last_resort_font_families() -> Vec<String> {
-    vec!("Roboto".into_string())
+    vec!("Roboto".to_owned())
 }
diff --git a/components/gfx/platform/freetype/font_template.rs b/components/gfx/platform/freetype/font_template.rs
index 79da895b52f..f2be1ad6d14 100644
--- a/components/gfx/platform/freetype/font_template.rs
+++ b/components/gfx/platform/freetype/font_template.rs
@@ -2,6 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use std::borrow::ToOwned;
 use std::io;
 use std::io::File;
 
@@ -29,7 +30,7 @@ impl FontTemplateData {
 
         FontTemplateData {
             bytes: bytes,
-            identifier: identifier.into_string(),
+            identifier: identifier.to_owned(),
         }
     }
 }
diff --git a/components/gfx/platform/macos/font_list.rs b/components/gfx/platform/macos/font_list.rs
index 4a10b0ee463..832db9d947a 100644
--- a/components/gfx/platform/macos/font_list.rs
+++ b/components/gfx/platform/macos/font_list.rs
@@ -6,6 +6,8 @@ use core_foundation::base::TCFType;
 use core_foundation::string::{CFString, CFStringRef};
 use core_text::font_descriptor::{CTFontDescriptor, CTFontDescriptorRef};
 use core_text;
+
+use std::borrow::ToOwned;
 use std::mem;
 
 pub fn get_available_families(callback: |String|) {
@@ -42,5 +44,5 @@ pub fn get_system_default_family(_generic_name: &str) -> Option<String> {
 }
 
 pub fn get_last_resort_font_families() -> Vec<String> {
-    vec!("Arial Unicode MS".into_string(), "Arial".into_string())
+    vec!("Arial Unicode MS".to_owned(), "Arial".to_owned())
 }
diff --git a/components/gfx/platform/macos/font_template.rs b/components/gfx/platform/macos/font_template.rs
index 9bb6b753a11..9c00c729a20 100644
--- a/components/gfx/platform/macos/font_template.rs
+++ b/components/gfx/platform/macos/font_template.rs
@@ -7,6 +7,8 @@ use core_graphics::font::CGFont;
 use core_text::font::CTFont;
 use core_text;
 
+use std::borrow::ToOwned;
+
 /// Platform specific font representation for mac.
 /// The identifier is a PostScript font name. The
 /// CTFont object is cached here for use by the
@@ -34,7 +36,7 @@ impl FontTemplateData {
 
         FontTemplateData {
             ctfont: ctfont,
-            identifier: identifier.into_string(),
+            identifier: identifier.to_owned(),
         }
     }
 }
diff --git a/components/layout/construct.rs b/components/layout/construct.rs
index eb90fbf734e..742fb2ebb3e 100644
--- a/components/layout/construct.rs
+++ b/components/layout/construct.rs
@@ -50,6 +50,7 @@ use script::dom::htmlelement::HTMLElementTypeId;
 use script::dom::htmlobjectelement::is_image_data;
 use script::dom::node::NodeTypeId;
 use servo_util::opts;
+use std::borrow::ToOwned;
 use std::collections::DList;
 use std::mem;
 use std::sync::atomic::Relaxed;
@@ -455,7 +456,7 @@ impl<'a> FlowConstructor<'a> {
                 // Add whitespace results. They will be stripped out later on when
                 // between block elements, and retained when between inline elements.
                 let fragment_info =
-                    SpecificFragmentInfo::UnscannedText(UnscannedTextFragmentInfo::from_text(" ".into_string()));
+                    SpecificFragmentInfo::UnscannedText(UnscannedTextFragmentInfo::from_text(" ".to_owned()));
                 let fragment = Fragment::from_opaque_node_and_style(whitespace_node,
                                                                     whitespace_style,
                                                                     whitespace_damage,
@@ -652,7 +653,7 @@ impl<'a> FlowConstructor<'a> {
                         whitespace_damage)) => {
                     // Instantiate the whitespace fragment.
                     let fragment_info = SpecificFragmentInfo::UnscannedText(UnscannedTextFragmentInfo::from_text(
-                            " ".into_string()));
+                            " ".to_owned()));
                     let fragment = Fragment::from_opaque_node_and_style(whitespace_node,
                                                                         whitespace_style,
                                                                         whitespace_damage,
@@ -986,7 +987,7 @@ impl<'a> FlowConstructor<'a> {
                                                                      .list_style_type) {
                     None => None,
                     Some(text) => {
-                        let text = text.into_string();
+                        let text = text.to_owned();
                         let mut unscanned_marker_fragments = DList::new();
                         unscanned_marker_fragments.push_back(Fragment::new_from_specific_info(
                             node,
diff --git a/components/layout/css/matching.rs b/components/layout/css/matching.rs
index 8606c575146..44207e0b9e1 100644
--- a/components/layout/css/matching.rs
+++ b/components/layout/css/matching.rs
@@ -14,6 +14,7 @@ use servo_util::bloom::BloomFilter;
 use servo_util::cache::{Cache, LRUCache, SimpleHashCache};
 use servo_util::smallvec::{SmallVec, SmallVec16};
 use servo_util::arc_ptr_eq;
+use std::borrow::ToOwned;
 use std::mem;
 use std::hash::{Hash, sip};
 use std::slice::Items;
@@ -237,7 +238,7 @@ impl StyleSharingCandidate {
             parent_style: parent_style,
             local_name: element.get_local_name().clone(),
             class: element.get_attr(&ns!(""), &atom!("class"))
-                          .map(|string| string.into_string()),
+                          .map(|string| string.to_owned()),
             link: element.get_link().is_some(),
             namespace: (*element.get_namespace()).clone(),
             common_style_affecting_attributes:
diff --git a/components/layout/layout_debug.rs b/components/layout/layout_debug.rs
index 94ddad456f6..3b28362f326 100644
--- a/components/layout/layout_debug.rs
+++ b/components/layout/layout_debug.rs
@@ -10,6 +10,8 @@
 use flow_ref::FlowRef;
 use flow;
 use serialize::json;
+
+use std::borrow::ToOwned;
 use std::cell::RefCell;
 use std::io::File;
 use std::sync::atomic::{AtomicUint, SeqCst, INIT_ATOMIC_UINT};
@@ -105,7 +107,7 @@ pub fn begin_trace(flow_root: FlowRef) {
     STATE_KEY.with(|ref r| {
         let flow_trace = json::encode(&flow::base(flow_root.deref()));
         let state = State {
-            scope_stack: vec![box ScopeData::new("root".into_string(), flow_trace)],
+            scope_stack: vec![box ScopeData::new("root".to_owned(), flow_trace)],
             flow_root: flow_root.clone(),
         };
         *r.borrow_mut() = Some(state);
diff --git a/components/layout/layout_task.rs b/components/layout/layout_task.rs
index b8c2385a557..b16efeaea16 100644
--- a/components/layout/layout_task.rs
+++ b/components/layout/layout_task.rs
@@ -59,6 +59,7 @@ use servo_util::task_state;
 use servo_util::time::{TimeProfilerCategory, ProfilerMetadata, TimeProfilerChan};
 use servo_util::time::{TimerMetadataFrameType, TimerMetadataReflowType, profile};
 use servo_util::workqueue::WorkQueue;
+use std::borrow::ToOwned;
 use std::cell::Cell;
 use std::comm::{channel, Sender, Receiver, Select};
 use std::mem;
@@ -499,7 +500,7 @@ impl LayoutTask {
         // GWTODO: Need to handle unloading web fonts (when we handle unloading stylesheets!)
         let mut rw_data = self.lock_rw_data(possibly_locked_rw_data);
         iter_font_face_rules(&sheet, &rw_data.stylist.device, |family, src| {
-            self.font_cache_task.add_web_font(family.into_string(), (*src).clone());
+            self.font_cache_task.add_web_font(family.to_owned(), (*src).clone());
         });
         rw_data.stylist.add_stylesheet(sheet);
         LayoutTask::return_rw_data(possibly_locked_rw_data, rw_data);
diff --git a/components/layout/wrapper.rs b/components/layout/wrapper.rs
index 1dd4be42288..12e991ccf3c 100644
--- a/components/layout/wrapper.rs
+++ b/components/layout/wrapper.rs
@@ -67,6 +67,7 @@ use style::{LengthAttribute, PropertyDeclarationBlock, SimpleColorAttribute};
 use style::{TElement, TElementAttributes, TNode, UnsignedIntegerAttribute};
 use url::Url;
 
+use std::borrow::ToOwned;
 use std::cell::{Ref, RefMut};
 
 /// Allows some convenience methods on generic layout nodes.
@@ -212,7 +213,7 @@ impl<'ln> TLayoutNode for LayoutNode<'ln> {
     fn text(&self) -> String {
         unsafe {
             if let Some(text) = TextCast::to_js(self.get_jsmanaged()) {
-                (*text.unsafe_get()).characterdata().data_for_layout().into_string()
+                (*text.unsafe_get()).characterdata().data_for_layout().to_owned()
             } else if let Some(input) = HTMLInputElementCast::to_js(self.get_jsmanaged()) {
                 input.get_value_for_layout()
             } else if let Some(area) = HTMLTextAreaElementCast::to_js(self.get_jsmanaged()) {
@@ -652,10 +653,10 @@ fn get_content(content_list: &content::T) -> String {
             let iter = &mut value.clone().into_iter().peekable();
             match iter.next() {
                 Some(content::ContentItem::StringContent(content)) => content,
-                _ => "".into_string(),
+                _ => "".to_owned(),
             }
         }
-        _ => "".into_string(),
+        _ => "".to_owned(),
     }
 }
 
diff --git a/components/net/about_loader.rs b/components/net/about_loader.rs
index bedb21b573e..4ff19586e2a 100644
--- a/components/net/about_loader.rs
+++ b/components/net/about_loader.rs
@@ -10,6 +10,7 @@ use url::Url;
 use hyper::http::RawStatus;
 use servo_util::resource_files::resources_dir_path;
 
+use std::borrow::ToOwned;
 use std::io::fs::PathExtensions;
 
 pub fn factory(mut load_data: LoadData, start_chan: Sender<TargetedLoadResponse>) {
@@ -24,7 +25,7 @@ pub fn factory(mut load_data: LoadData, start_chan: Sender<TargetedLoadResponse>
                 content_type: Some(("text".to_string(), "html".to_string())),
                 charset: Some("utf-8".to_string()),
                 headers: None,
-                status: Some(RawStatus(200, "OK".into_string()))
+                status: Some(RawStatus(200, "OK".to_owned()))
             });
             chan.send(Done(Ok(())));
             return
diff --git a/components/net/http_loader.rs b/components/net/http_loader.rs
index d8b909f88f3..86f2dbf0d38 100644
--- a/components/net/http_loader.rs
+++ b/components/net/http_loader.rs
@@ -15,6 +15,8 @@ use std::io::Reader;
 use servo_util::task::spawn_named;
 use url::{Url, UrlParser};
 
+use std::borrow::ToOwned;
+
 pub fn factory(load_data: LoadData, start_chan: Sender<TargetedLoadResponse>) {
     spawn_named("http_loader", proc() load(load_data, start_chan))
 }
@@ -85,7 +87,7 @@ fn load(load_data: LoadData, start_chan: Sender<TargetedLoadResponse>) {
         // FIXME(seanmonstar): use AcceptEncoding from Hyper once available
         //if !req.headers.has::<AcceptEncoding>() {
             // We currently don't support HTTP Compression (FIXME #2587)
-            req.headers_mut().set_raw("Accept-Encoding".into_string(), vec![b"identity".to_vec()]);
+            req.headers_mut().set_raw("Accept-Encoding".to_owned(), vec![b"identity".to_vec()]);
         //}
         let writer = match load_data.data {
             Some(ref data) => {
diff --git a/components/net/resource_task.rs b/components/net/resource_task.rs
index 9b541455a03..8c23db5e3ae 100644
--- a/components/net/resource_task.rs
+++ b/components/net/resource_task.rs
@@ -20,6 +20,7 @@ use hyper::method::Method;
 use hyper::mime::{Mime, Attr};
 use url::Url;
 
+use std::borrow::ToOwned;
 use std::comm::{channel, Receiver, Sender};
 
 pub enum ControlMsg {
@@ -86,7 +87,7 @@ impl Metadata {
             charset:      None,
             headers: None,
             // http://fetch.spec.whatwg.org/#concept-response-status-message
-            status: Some(RawStatus(200, "OK".into_string()))
+            status: Some(RawStatus(200, "OK".to_owned()))
         }
     }
 
diff --git a/components/plugins/lints/str_to_string.rs b/components/plugins/lints/str_to_string.rs
index d02e0d9bfde..d6272f4d629 100644
--- a/components/plugins/lints/str_to_string.rs
+++ b/components/plugins/lints/str_to_string.rs
@@ -8,9 +8,9 @@ use rustc::middle::ty::expr_ty;
 use rustc::middle::ty;
 
 declare_lint!(STR_TO_STRING, Deny,
-              "Warn when a String could use into_string() instead of to_string()")
+              "Warn when a String could use to_owned() instead of to_string()")
 
-/// Prefer str.into_string() over str.to_string()
+/// Prefer str.to_owned() over str.to_string()
 ///
 /// The latter creates a `Formatter` and is 5x slower than the former
 pub struct StrToStringPass;
@@ -26,7 +26,7 @@ impl LintPass for StrToStringPass {
                 if method.node.as_str() == "to_string"
                 && is_str(cx, &*args[0]) => {
                 cx.span_lint(STR_TO_STRING, expr.span,
-                             "str.into_string() is more efficient than str.to_string(), please use it instead");
+                             "str.to_owned() is more efficient than str.to_string(), please use it instead");
             },
             _ => ()
         }
diff --git a/components/script/dom/activation.rs b/components/script/dom/activation.rs
index 6299abaa672..78e3d6cd4bb 100644
--- a/components/script/dom/activation.rs
+++ b/components/script/dom/activation.rs
@@ -11,6 +11,7 @@ use dom::eventtarget::{EventTarget, EventTargetHelpers};
 use dom::mouseevent::MouseEvent;
 use dom::node::window_from_node;
 
+use std::borrow::ToOwned;
 
 /// Trait for elements with defined activation behavior
 pub trait Activatable : Copy {
@@ -44,7 +45,7 @@ pub trait Activatable : Copy {
         // https://html.spec.whatwg.org/multipage/webappapis.html#fire-a-synthetic-mouse-event
         let win = window_from_node(element.r()).root();
         let target: JSRef<EventTarget> = EventTargetCast::from_ref(element.r());
-        let mouse = MouseEvent::new(win.r(), "click".into_string(),
+        let mouse = MouseEvent::new(win.r(), "click".to_owned(),
                                     false, false, Some(win.r()), 1,
                                     0, 0, 0, 0, ctrlKey, shiftKey, altKey, metaKey,
                                     0, None).root();
diff --git a/components/script/dom/attr.rs b/components/script/dom/attr.rs
index 9a062679a4f..789e5f925d6 100644
--- a/components/script/dom/attr.rs
+++ b/components/script/dom/attr.rs
@@ -20,6 +20,7 @@ use servo_util::str::{DOMString, split_html_space_chars};
 
 use string_cache::{Atom, Namespace};
 
+use std::borrow::ToOwned;
 use std::cell::Ref;
 use std::mem;
 
@@ -138,11 +139,11 @@ impl Attr {
 
 impl<'a> AttrMethods for JSRef<'a, Attr> {
     fn LocalName(self) -> DOMString {
-        self.local_name().as_slice().into_string()
+        self.local_name().as_slice().to_owned()
     }
 
     fn Value(self) -> DOMString {
-        self.value().as_slice().into_string()
+        self.value().as_slice().to_owned()
     }
 
     fn SetValue(self, value: DOMString) {
@@ -175,14 +176,14 @@ impl<'a> AttrMethods for JSRef<'a, Attr> {
     }
 
     fn Name(self) -> DOMString {
-        self.name.as_slice().into_string()
+        self.name.as_slice().to_owned()
     }
 
     fn GetNamespaceURI(self) -> Option<DOMString> {
         let Namespace(ref atom) = self.namespace;
         match atom.as_slice() {
             "" => None,
-            url => Some(url.into_string()),
+            url => Some(url.to_owned()),
         }
     }
 
@@ -237,7 +238,7 @@ impl<'a> AttrHelpers<'a> for JSRef<'a, Attr> {
     fn summarize(self) -> AttrInfo {
         let Namespace(ref ns) = self.namespace;
         AttrInfo {
-            namespace: ns.as_slice().into_string(),
+            namespace: ns.as_slice().to_owned(),
             name: self.Name(),
             value: self.Value(),
         }
diff --git a/components/script/dom/bindings/codegen/CodegenRust.py b/components/script/dom/bindings/codegen/CodegenRust.py
index 3d28cf2bdc9..e1e5bee2036 100644
--- a/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/components/script/dom/bindings/codegen/CodegenRust.py
@@ -674,7 +674,7 @@ def getJSToNativeConversionTemplate(type, descriptorProvider, failureCode=None,
             default = "None"
         else:
             assert defaultValue.type.tag() == IDLType.Tags.domstring
-            value = "str::from_utf8(&data).unwrap().into_string()"
+            value = "str::from_utf8(&data).unwrap().to_owned()"
             if type.nullable():
                 value = "Some(%s)" % value
 
@@ -4584,6 +4584,7 @@ class CGBindingRoot(CGThing):
             'page::JSPageInfo',
             'libc',
             'servo_util::str::DOMString',
+            'std::borrow::ToOwned',
             'std::cmp',
             'std::iter::repeat',
             'std::mem',
diff --git a/components/script/dom/bindings/conversions.rs b/components/script/dom/bindings/conversions.rs
index 8e9e656b0c4..8447b9e9554 100644
--- a/components/script/dom/bindings/conversions.rs
+++ b/components/script/dom/bindings/conversions.rs
@@ -28,6 +28,7 @@ use js::jsval::{UndefinedValue, NullValue, BooleanValue, Int32Value, UInt32Value
 use js::jsval::{StringValue, ObjectValue, ObjectOrNullValue};
 
 use libc;
+use std::borrow::ToOwned;
 use std::default;
 use std::slice;
 
@@ -289,7 +290,7 @@ pub fn jsid_to_str(cx: *mut JSContext, id: jsid) -> DOMString {
 impl FromJSValConvertible<StringificationBehavior> for DOMString {
     fn from_jsval(cx: *mut JSContext, value: JSVal, nullBehavior: StringificationBehavior) -> Result<DOMString, ()> {
         if nullBehavior == StringificationBehavior::Empty && value.is_null() {
-            Ok("".into_string())
+            Ok("".to_owned())
         } else {
             let jsstr = unsafe { JS_ValueToString(cx, value) };
             if jsstr.is_null() {
diff --git a/components/script/dom/bindings/str.rs b/components/script/dom/bindings/str.rs
index c252a8a3e21..e67c8ac7d6a 100644
--- a/components/script/dom/bindings/str.rs
+++ b/components/script/dom/bindings/str.rs
@@ -6,6 +6,7 @@
 
 //! The `ByteString` struct.
 
+use std::borrow::ToOwned;
 use std::hash::{Hash, sip};
 use std::str;
 use std::str::FromStr;
@@ -154,6 +155,6 @@ impl Hash for ByteString {
 
 impl FromStr for ByteString {
     fn from_str(s: &str) -> Option<ByteString> {
-        Some(ByteString::new(s.into_string().into_bytes()))
+        Some(ByteString::new(s.to_owned().into_bytes()))
     }
 }
diff --git a/components/script/dom/blob.rs b/components/script/dom/blob.rs
index f4794d9f6fe..782fff57c9d 100644
--- a/components/script/dom/blob.rs
+++ b/components/script/dom/blob.rs
@@ -11,6 +11,7 @@ use dom::bindings::codegen::Bindings::BlobBinding;
 use dom::bindings::codegen::Bindings::BlobBinding::BlobMethods;
 
 use servo_util::str::DOMString;
+use std::borrow::ToOwned;
 use std::cmp::{min, max};
 use std::ascii::AsciiExt;
 
@@ -43,7 +44,7 @@ impl Blob {
             reflector_: Reflector::new(),
             type_: type_,
             bytes: bytes,
-            typeString: typeString.into_string(),
+            typeString: typeString.to_owned(),
             global: GlobalField::from_rooted(&global)
             //isClosed_: false
         }
@@ -109,12 +110,12 @@ impl<'a> BlobMethods for JSRef<'a, Blob> {
             }
         };
         let relativeContentType = match contentType {
-            None => "".into_string(),
+            None => "".to_owned(),
             Some(str) => {
                 if is_ascii_printable(&str) {
-                    str.as_slice().to_ascii_lower().into_string()
+                    str.as_slice().to_ascii_lower().to_owned()
                 } else {
-                    "".into_string()
+                    "".to_owned()
                 }
             }
         };
diff --git a/components/script/dom/characterdata.rs b/components/script/dom/characterdata.rs
index 55e4ab5f551..bdc56530e7d 100644
--- a/components/script/dom/characterdata.rs
+++ b/components/script/dom/characterdata.rs
@@ -16,6 +16,7 @@ use dom::node::{Node, NodeHelpers, NodeTypeId};
 
 use servo_util::str::DOMString;
 
+use std::borrow::ToOwned;
 use std::cell::Ref;
 
 #[dom_struct]
@@ -80,7 +81,7 @@ impl<'a> CharacterDataMethods for JSRef<'a, CharacterData> {
     }
 
     fn SubstringData(self, offset: u32, count: u32) -> Fallible<DOMString> {
-        Ok(self.data.borrow().as_slice().slice(offset as uint, count as uint).into_string())
+        Ok(self.data.borrow().as_slice().slice(offset as uint, count as uint).to_owned())
     }
 
     fn AppendData(self, arg: DOMString) -> ErrorResult {
@@ -93,7 +94,7 @@ impl<'a> CharacterDataMethods for JSRef<'a, CharacterData> {
     }
 
     fn DeleteData(self, offset: u32, count: u32) -> ErrorResult {
-        self.ReplaceData(offset, count, "".into_string())
+        self.ReplaceData(offset, count, "".to_owned())
     }
 
     fn ReplaceData(self, offset: u32, count: u32, arg: DOMString) -> ErrorResult {
@@ -106,7 +107,7 @@ impl<'a> CharacterDataMethods for JSRef<'a, CharacterData> {
         } else {
             count
         };
-        let mut data = self.data.borrow().as_slice().slice(0, offset as uint).into_string();
+        let mut data = self.data.borrow().as_slice().slice(0, offset as uint).to_owned();
         data.push_str(arg.as_slice());
         data.push_str(self.data.borrow().as_slice().slice((offset + count) as uint, length as uint));
         *self.data.borrow_mut() = data;
diff --git a/components/script/dom/create.rs b/components/script/dom/create.rs
index 4f8d3b9f846..73e39768f6e 100644
--- a/components/script/dom/create.rs
+++ b/components/script/dom/create.rs
@@ -79,16 +79,18 @@ use servo_util::str::DOMString;
 
 use string_cache::QualName;
 
+use std::borrow::ToOwned;
+
 pub fn create_element(name: QualName, prefix: Option<DOMString>,
                       document: JSRef<Document>, creator: ElementCreator)
                       -> Temporary<Element> {
     if name.ns != ns!(HTML) {
-        return Element::new(name.local.as_slice().into_string(), name.ns, prefix, document);
+        return Element::new(name.local.as_slice().to_owned(), name.ns, prefix, document);
     }
 
     macro_rules! make(
         ($ctor:ident $(, $arg:expr)*) => ({
-            let obj = $ctor::new(name.local.as_slice().into_string(), prefix, document $(, $arg)*);
+            let obj = $ctor::new(name.local.as_slice().to_owned(), prefix, document $(, $arg)*);
             ElementCast::from_temporary(obj)
         })
     )
diff --git a/components/script/dom/cssstyledeclaration.rs b/components/script/dom/cssstyledeclaration.rs
index b95df387901..32f7f174433 100644
--- a/components/script/dom/cssstyledeclaration.rs
+++ b/components/script/dom/cssstyledeclaration.rs
@@ -21,6 +21,7 @@ use style::{is_supported_property, longhands_from_shorthand, parse_style_attribu
 use style::PropertyDeclaration;
 
 use std::ascii::AsciiExt;
+use std::borrow::ToOwned;
 
 #[dom_struct]
 pub struct CSSStyleDeclaration {
@@ -39,10 +40,10 @@ macro_rules! css_properties(
     ( $([$getter:ident, $setter:ident, $cssprop:expr]),* ) => (
         $(
             fn $getter(self) -> DOMString {
-                self.GetPropertyValue($cssprop.into_string())
+                self.GetPropertyValue($cssprop.to_owned())
             }
             fn $setter(self, value: DOMString) {
-                self.SetPropertyValue($cssprop.into_string(), value).unwrap();
+                self.SetPropertyValue($cssprop.to_owned(), value).unwrap();
             }
         )*
     );
@@ -123,7 +124,7 @@ impl<'a> CSSStyleDeclarationMethods for JSRef<'a, CSSStyleDeclaration> {
             }
         });
 
-        result.unwrap_or("".into_string())
+        result.unwrap_or("".to_owned())
     }
 
     // http://dev.w3.org/csswg/cssom/#dom-cssstyledeclaration-getpropertyvalue
@@ -145,7 +146,7 @@ impl<'a> CSSStyleDeclarationMethods for JSRef<'a, CSSStyleDeclaration> {
                 // Step 2.2.2 & 2.2.3
                 match declaration {
                     Some(declaration) => list.push(declaration),
-                    None => return "".into_string(),
+                    None => return "".to_owned(),
                 }
             }
 
@@ -157,7 +158,7 @@ impl<'a> CSSStyleDeclarationMethods for JSRef<'a, CSSStyleDeclaration> {
         if let Some(ref declaration) = self.get_declaration(&property) {
             serialize_value(declaration)
         } else {
-            "".into_string()
+            "".to_owned()
         }
     }
 
@@ -174,15 +175,15 @@ impl<'a> CSSStyleDeclarationMethods for JSRef<'a, CSSStyleDeclaration> {
                                   .map(|longhand| self.GetPropertyPriority(longhand.clone()))
                                   .all(|priority| priority.as_slice() == "important") {
 
-                return "important".into_string();
+                return "important".to_owned();
             }
         // Step 3
         } else if self.get_important_declaration(&property).is_some() {
-            return "important".into_string();
+            return "important".to_owned();
         }
 
         // Step 4
-        "".into_string()
+        "".to_owned()
     }
 
     // http://dev.w3.org/csswg/cssom/#dom-cssstyledeclaration-setproperty
@@ -289,7 +290,7 @@ impl<'a> CSSStyleDeclarationMethods for JSRef<'a, CSSStyleDeclaration> {
 
     // http://dev.w3.org/csswg/cssom/#dom-cssstyledeclaration-setpropertyvalue
     fn SetPropertyValue(self, property: DOMString, value: DOMString) -> ErrorResult {
-        self.SetProperty(property, value, "".into_string())
+        self.SetProperty(property, value, "".to_owned())
     }
 
     // http://dev.w3.org/csswg/cssom/#dom-cssstyledeclaration-removeproperty
@@ -328,12 +329,12 @@ impl<'a> CSSStyleDeclarationMethods for JSRef<'a, CSSStyleDeclaration> {
 
     // http://dev.w3.org/csswg/cssom/#dom-cssstyledeclaration-cssfloat
     fn CssFloat(self) -> DOMString {
-        self.GetPropertyValue("float".into_string())
+        self.GetPropertyValue("float".to_owned())
     }
 
     // http://dev.w3.org/csswg/cssom/#dom-cssstyledeclaration-cssfloat
     fn SetCssFloat(self, value: DOMString) -> ErrorResult {
-        self.SetPropertyValue("float".into_string(), value)
+        self.SetPropertyValue("float".to_owned(), value)
     }
 
     fn IndexedGetter(self, index: u32, found: &mut bool) -> DOMString {
diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index f01dc20a7e1..d20dcda10e7 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -63,6 +63,7 @@ use layout_interface::{LayoutChan, Msg};
 use string_cache::{Atom, QualName};
 use url::Url;
 
+use std::borrow::ToOwned;
 use std::collections::HashMap;
 use std::collections::hash_map::{Vacant, Occupied};
 use std::ascii::AsciiExt;
@@ -339,7 +340,7 @@ impl<'a> DocumentHelpers<'a> for JSRef<'a, Document> {
         self.ready_state.set(state);
 
         let window = self.window.root();
-        let event = Event::new(GlobalRef::Window(window.r()), "readystatechange".into_string(),
+        let event = Event::new(GlobalRef::Window(window.r()), "readystatechange".to_owned(),
                                EventBubbles::DoesNotBubble,
                                EventCancelable::NotCancelable).root();
         let target: JSRef<EventTarget> = EventTargetCast::from_ref(self);
@@ -425,9 +426,9 @@ impl Document {
                 Some(string) => string.clone(),
                 None => match is_html_document {
                     // http://dom.spec.whatwg.org/#dom-domimplementation-createhtmldocument
-                    IsHTMLDocument::HTMLDocument => "text/html".into_string(),
+                    IsHTMLDocument::HTMLDocument => "text/html".to_owned(),
                     // http://dom.spec.whatwg.org/#concept-document-content-type
-                    IsHTMLDocument::NonHTMLDocument => "application/xml".into_string()
+                    IsHTMLDocument::NonHTMLDocument => "application/xml".to_owned()
                 }
             },
             last_modified: DOMRefCell::new(None),
@@ -435,7 +436,7 @@ impl Document {
             // http://dom.spec.whatwg.org/#concept-document-quirks
             quirks_mode: Cell::new(NoQuirks),
             // http://dom.spec.whatwg.org/#concept-document-encoding
-            encoding_name: DOMRefCell::new("UTF-8".into_string()),
+            encoding_name: DOMRefCell::new("UTF-8".to_owned()),
             is_html_document: is_html_document == IsHTMLDocument::HTMLDocument,
             images: Default::default(),
             embeds: Default::default(),
@@ -520,8 +521,8 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
     // http://dom.spec.whatwg.org/#dom-document-compatmode
     fn CompatMode(self) -> DOMString {
         match self.quirks_mode.get() {
-            LimitedQuirks | NoQuirks => "CSS1Compat".into_string(),
-            Quirks => "BackCompat".into_string()
+            LimitedQuirks | NoQuirks => "CSS1Compat".to_owned(),
+            Quirks => "BackCompat".to_owned()
         }
     }
 
@@ -639,7 +640,7 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
         }
 
         let name = QualName::new(ns, Atom::from_slice(local_name_from_qname));
-        Ok(Element::create(name, prefix_from_qname.map(|s| s.into_string()), self,
+        Ok(Element::create(name, prefix_from_qname.map(|s| s.to_owned()), self,
                            ElementCreator::ScriptCreated))
     }
 
@@ -654,7 +655,7 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
         let name = Atom::from_slice(local_name.as_slice());
         // repetition used because string_cache::atom::Atom is non-copyable
         let l_name = Atom::from_slice(local_name.as_slice());
-        let value = AttrValue::String("".into_string());
+        let value = AttrValue::String("".to_owned());
 
         Ok(Attr::new(window.r(), name, value, l_name, ns!(""), None, None))
     }
@@ -802,7 +803,7 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
                         }
                     },
                     None => {
-                        let new_title = HTMLTitleElement::new("title".into_string(), None, self).root();
+                        let new_title = HTMLTitleElement::new("title".to_owned(), None, self).root();
                         let new_title: JSRef<Node> = NodeCast::from_ref(new_title.r());
 
                         if !title.is_empty() {
diff --git a/components/script/dom/documenttype.rs b/components/script/dom/documenttype.rs
index 2fe9e340987..fc9407c5dd0 100644
--- a/components/script/dom/documenttype.rs
+++ b/components/script/dom/documenttype.rs
@@ -11,6 +11,8 @@ use dom::eventtarget::{EventTarget, EventTargetTypeId};
 use dom::node::{Node, NodeHelpers, NodeTypeId};
 use servo_util::str::DOMString;
 
+use std::borrow::ToOwned;
+
 /// The `DOCTYPE` tag.
 #[dom_struct]
 pub struct DocumentType {
@@ -35,8 +37,8 @@ impl DocumentType {
         DocumentType {
             node: Node::new_inherited(NodeTypeId::DocumentType, document),
             name: name,
-            public_id: public_id.unwrap_or("".into_string()),
-            system_id: system_id.unwrap_or("".into_string())
+            public_id: public_id.unwrap_or("".to_owned()),
+            system_id: system_id.unwrap_or("".to_owned())
         }
     }
     #[allow(unrooted_must_root)]
diff --git a/components/script/dom/domexception.rs b/components/script/dom/domexception.rs
index 0af98e21e81..112dcedf4b2 100644
--- a/components/script/dom/domexception.rs
+++ b/components/script/dom/domexception.rs
@@ -11,6 +11,8 @@ use dom::bindings::js::{JSRef, Temporary};
 use dom::bindings::utils::{Reflector, reflect_dom_object};
 use servo_util::str::DOMString;
 
+use std::borrow::ToOwned;
+
 #[repr(uint)]
 #[deriving(Copy, Show)]
 #[jstraceable]
@@ -125,6 +127,6 @@ impl<'a> DOMExceptionMethods for JSRef<'a, DOMException> {
             DOMErrorName::EncodingError => "The encoding operation (either encoded or decoding) failed."
         };
 
-        message.into_string()
+        message.to_owned()
     }
 }
diff --git a/components/script/dom/domimplementation.rs b/components/script/dom/domimplementation.rs
index e298d275f47..285b86967e8 100644
--- a/components/script/dom/domimplementation.rs
+++ b/components/script/dom/domimplementation.rs
@@ -25,6 +25,8 @@ use dom::node::Node;
 use dom::text::Text;
 use servo_util::str::DOMString;
 
+use std::borrow::ToOwned;
+
 #[dom_struct]
 pub struct DOMImplementation {
     reflector_: Reflector,
@@ -123,18 +125,18 @@ impl<'a> DOMImplementationMethods for JSRef<'a, DOMImplementation> {
 
         {
             // Step 3.
-            let doc_type = DocumentType::new("html".into_string(), None, None, doc.r()).root();
+            let doc_type = DocumentType::new("html".to_owned(), None, None, doc.r()).root();
             assert!(doc_node.AppendChild(NodeCast::from_ref(doc_type.r())).is_ok());
         }
 
         {
             // Step 4.
-            let doc_html: Root<Node> = NodeCast::from_temporary(HTMLHtmlElement::new("html".into_string(), None, doc.r())).root();
+            let doc_html: Root<Node> = NodeCast::from_temporary(HTMLHtmlElement::new("html".to_owned(), None, doc.r())).root();
             assert!(doc_node.AppendChild(doc_html.r()).is_ok());
 
             {
                 // Step 5.
-                let doc_head: Root<Node> = NodeCast::from_temporary(HTMLHeadElement::new("head".into_string(), None, doc.r())).root();
+                let doc_head: Root<Node> = NodeCast::from_temporary(HTMLHeadElement::new("head".to_owned(), None, doc.r())).root();
                 assert!(doc_html.r().AppendChild(doc_head.r()).is_ok());
 
                 // Step 6.
@@ -142,7 +144,7 @@ impl<'a> DOMImplementationMethods for JSRef<'a, DOMImplementation> {
                     None => (),
                     Some(title_str) => {
                         // Step 6.1.
-                        let doc_title: Root<Node> = NodeCast::from_temporary(HTMLTitleElement::new("title".into_string(), None, doc.r())).root();
+                        let doc_title: Root<Node> = NodeCast::from_temporary(HTMLTitleElement::new("title".to_owned(), None, doc.r())).root();
                         assert!(doc_head.r().AppendChild(doc_title.r()).is_ok());
 
                         // Step 6.2.
@@ -153,7 +155,7 @@ impl<'a> DOMImplementationMethods for JSRef<'a, DOMImplementation> {
             }
 
             // Step 7.
-            let doc_body: Root<HTMLBodyElement> = HTMLBodyElement::new("body".into_string(), None, doc.r()).root();
+            let doc_body: Root<HTMLBodyElement> = HTMLBodyElement::new("body".to_owned(), None, doc.r()).root();
             assert!(doc_html.r().AppendChild(NodeCast::from_ref(doc_body.r())).is_ok());
         }
 
diff --git a/components/script/dom/domparser.rs b/components/script/dom/domparser.rs
index 4b473ed8ced..a3a7db0b1ca 100644
--- a/components/script/dom/domparser.rs
+++ b/components/script/dom/domparser.rs
@@ -17,6 +17,8 @@ use dom::window::Window;
 use parse::html::{HTMLInput, parse_html};
 use servo_util::str::DOMString;
 
+use std::borrow::ToOwned;
+
 #[dom_struct]
 pub struct DOMParser {
     reflector_: Reflector,
@@ -49,7 +51,7 @@ impl<'a> DOMParserMethods for JSRef<'a, DOMParser> {
                        -> Fallible<Temporary<Document>> {
         let window = self.window.root();
         let url = window.r().get_url();
-        let content_type = DOMParserBinding::SupportedTypeValues::strings[ty as uint].into_string();
+        let content_type = DOMParserBinding::SupportedTypeValues::strings[ty as uint].to_owned();
         match ty {
             Text_html => {
                 let document = Document::new(window.r(), Some(url.clone()),
diff --git a/components/script/dom/domtokenlist.rs b/components/script/dom/domtokenlist.rs
index c681dc7d710..3ae0a4f09de 100644
--- a/components/script/dom/domtokenlist.rs
+++ b/components/script/dom/domtokenlist.rs
@@ -16,6 +16,8 @@ use dom::node::window_from_node;
 use servo_util::str::{DOMString, HTML_SPACE_CHARACTERS};
 use string_cache::Atom;
 
+use std::borrow::ToOwned;
+
 #[dom_struct]
 pub struct DOMTokenList {
     reflector_: Reflector,
@@ -72,7 +74,7 @@ impl<'a> DOMTokenListMethods for JSRef<'a, DOMTokenList> {
     // http://dom.spec.whatwg.org/#dom-domtokenlist-item
     fn Item(self, index: u32) -> Option<DOMString> {
         self.attribute().root().and_then(|attr| attr.r().value().tokens().and_then(|tokens| {
-            tokens.get(index as uint).map(|token| token.as_slice().into_string())
+            tokens.get(index as uint).map(|token| token.as_slice().to_owned())
         }))
     }
 
diff --git a/components/script/dom/element.rs b/components/script/dom/element.rs
index 0735e19299f..b684b90579e 100644
--- a/components/script/dom/element.rs
+++ b/components/script/dom/element.rs
@@ -59,6 +59,7 @@ use html5ever::tree_builder::{NoQuirks, LimitedQuirks, Quirks};
 
 use cssparser::RGBA;
 use std::ascii::AsciiExt;
+use std::borrow::ToOwned;
 use std::cell::{Ref, RefMut};
 use std::default::Default;
 use std::mem;
@@ -761,7 +762,7 @@ impl<'a> AttributeHandlers for JSRef<'a, Element> {
     fn get_url_attribute(self, name: &Atom) -> DOMString {
         assert!(name.as_slice() == name.as_slice().to_ascii_lower().as_slice());
         if !self.has_attribute(name) {
-            return "".into_string();
+            return "".to_owned();
         }
         let url = self.get_string_attribute(name);
         let doc = document_from_node(self).root();
@@ -770,7 +771,7 @@ impl<'a> AttributeHandlers for JSRef<'a, Element> {
         // XXXManishearth this doesn't handle `javascript:` urls properly
         match UrlParser::new().base_url(base).parse(url.as_slice()) {
             Ok(parsed) => parsed.serialize(),
-            Err(_) => "".into_string()
+            Err(_) => "".to_owned()
         }
     }
     fn set_url_attribute(self, name: &Atom, value: DOMString) {
@@ -780,7 +781,7 @@ impl<'a> AttributeHandlers for JSRef<'a, Element> {
     fn get_string_attribute(self, name: &Atom) -> DOMString {
         match self.get_attribute(ns!(""), name) {
             Some(x) => x.root().r().Value(),
-            None => "".into_string()
+            None => "".to_owned()
         }
     }
     fn set_string_attribute(self, name: &Atom, value: DOMString) {
@@ -835,12 +836,12 @@ impl<'a> ElementMethods for JSRef<'a, Element> {
     fn GetNamespaceURI(self) -> Option<DOMString> {
         match self.namespace {
             ns!("") => None,
-            Namespace(ref ns) => Some(ns.as_slice().into_string())
+            Namespace(ref ns) => Some(ns.as_slice().to_owned())
         }
     }
 
     fn LocalName(self) -> DOMString {
-        self.local_name.as_slice().into_string()
+        self.local_name.as_slice().to_owned()
     }
 
     // http://dom.spec.whatwg.org/#dom-element-prefix
@@ -996,7 +997,7 @@ impl<'a> ElementMethods for JSRef<'a, Element> {
         // Step 9.
         let value = self.parse_attribute(&namespace, &local_name, value);
         self.do_set_attribute(local_name.clone(), value, name,
-                              namespace.clone(), prefix.map(|s| s.into_string()),
+                              namespace.clone(), prefix.map(|s| s.to_owned()),
                               |attr| {
             *attr.local_name() == local_name &&
             *attr.namespace() == namespace
diff --git a/components/script/dom/errorevent.rs b/components/script/dom/errorevent.rs
index 51a86165cbe..2ae0eec9a18 100644
--- a/components/script/dom/errorevent.rs
+++ b/components/script/dom/errorevent.rs
@@ -17,6 +17,7 @@ use dom::event::{Event, EventTypeId, EventBubbles, EventCancelable};
 use servo_util::str::DOMString;
 
 use dom::bindings::cell::DOMRefCell;
+use std::borrow::ToOwned;
 use std::cell::{Cell};
 use js::jsval::{JSVal, NullValue};
 
@@ -40,8 +41,8 @@ impl ErrorEvent {
     fn new_inherited(type_id: EventTypeId) -> ErrorEvent {
         ErrorEvent {
             event: Event::new_inherited(type_id),
-            message: DOMRefCell::new("".into_string()),
-            filename: DOMRefCell::new("".into_string()),
+            message: DOMRefCell::new("".to_owned()),
+            filename: DOMRefCell::new("".to_owned()),
             lineno: Cell::new(0),
             colno: Cell::new(0),
             error: MutHeap::new(NullValue())
@@ -80,11 +81,11 @@ impl ErrorEvent {
                        init: &ErrorEventBinding::ErrorEventInit) -> Fallible<Temporary<ErrorEvent>>{
         let msg = match init.message.as_ref() {
             Some(message) => message.clone(),
-            None => "".into_string(),
+            None => "".to_owned(),
         };
 
         let file_name = match init.filename.as_ref() {
-            None => "".into_string(),
+            None => "".to_owned(),
             Some(filename) => filename.clone(),
         };
 
diff --git a/components/script/dom/event.rs b/components/script/dom/event.rs
index 0f084288c7b..eda8690e48d 100644
--- a/components/script/dom/event.rs
+++ b/components/script/dom/event.rs
@@ -11,6 +11,8 @@ use dom::bindings::js::{MutNullableJS, JSRef, Temporary};
 use dom::bindings::utils::{Reflector, reflect_dom_object};
 use dom::eventtarget::EventTarget;
 use servo_util::str::DOMString;
+
+use std::borrow::ToOwned;
 use std::cell::Cell;
 use std::default::Default;
 
@@ -77,7 +79,7 @@ impl Event {
             current_target: Default::default(),
             target: Default::default(),
             phase: Cell::new(EventPhase::None),
-            type_: DOMRefCell::new("".into_string()),
+            type_: DOMRefCell::new("".to_owned()),
             canceled: Cell::new(false),
             cancelable: Cell::new(false),
             bubbles: Cell::new(false),
diff --git a/components/script/dom/eventtarget.rs b/components/script/dom/eventtarget.rs
index 71203d386a2..fd7de4c64d6 100644
--- a/components/script/dom/eventtarget.rs
+++ b/components/script/dom/eventtarget.rs
@@ -22,6 +22,7 @@ use js::jsapi::{JSContext, JSObject};
 use servo_util::fnv::FnvHasher;
 use servo_util::str::DOMString;
 use libc::{c_char, size_t};
+use std::borrow::ToOwned;
 use std::collections::hash_map::{Occupied, Vacant};
 use std::ptr;
 use url::Url;
@@ -231,11 +232,11 @@ impl<'a> EventTargetHelpers for JSRef<'a, EventTarget> {
     {
         let event_listener = listener.map(|listener|
                                           EventListener::new(listener.callback()));
-        self.set_inline_event_listener(ty.into_string(), event_listener);
+        self.set_inline_event_listener(ty.to_owned(), event_listener);
     }
 
     fn get_event_handler_common<T: CallbackContainer>(self, ty: &str) -> Option<T> {
-        let listener = self.get_inline_event_listener(ty.into_string());
+        let listener = self.get_inline_event_listener(ty.to_owned());
         listener.map(|listener| CallbackContainer::new(listener.parent.callback()))
     }
 
diff --git a/components/script/dom/formdata.rs b/components/script/dom/formdata.rs
index bcac91da97e..9687bf6d9e5 100644
--- a/components/script/dom/formdata.rs
+++ b/components/script/dom/formdata.rs
@@ -16,6 +16,8 @@ use dom::blob::Blob;
 use dom::file::File;
 use dom::htmlformelement::HTMLFormElement;
 use servo_util::str::DOMString;
+
+use std::borrow::ToOwned;
 use std::collections::HashMap;
 use std::collections::hash_map::{Occupied, Vacant};
 
@@ -115,7 +117,7 @@ impl PrivateFormDataHelpers for FormData {
     fn get_file_from_blob(&self, value: JSRef<Blob>, filename: Option<DOMString>) -> Temporary<File> {
         let global = self.global.root();
         let f: Option<JSRef<File>> = FileCast::to_ref(value);
-        let name = filename.unwrap_or(f.map(|inner| inner.name().clone()).unwrap_or("blob".into_string()));
+        let name = filename.unwrap_or(f.map(|inner| inner.name().clone()).unwrap_or("blob".to_owned()));
         File::new(global.r(), value, name)
     }
 }
diff --git a/components/script/dom/htmlbodyelement.rs b/components/script/dom/htmlbodyelement.rs
index 220578d0282..c398d605abd 100644
--- a/components/script/dom/htmlbodyelement.rs
+++ b/components/script/dom/htmlbodyelement.rs
@@ -19,6 +19,8 @@ use dom::virtualmethods::VirtualMethods;
 
 use cssparser::RGBA;
 use servo_util::str::{mod, DOMString};
+
+use std::borrow::ToOwned;
 use std::cell::Cell;
 
 #[dom_struct]
@@ -106,7 +108,7 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLBodyElement> {
                 };
             evtarget.set_event_handler_uncompiled(cx, url, reflector,
                                                   name.slice_from(2),
-                                                  attr.value().as_slice().into_string());
+                                                  attr.value().as_slice().to_owned());
         }
 
         match attr.local_name() {
diff --git a/components/script/dom/htmlbuttonelement.rs b/components/script/dom/htmlbuttonelement.rs
index dfc0309cc19..3dd5026a5a0 100644
--- a/components/script/dom/htmlbuttonelement.rs
+++ b/components/script/dom/htmlbuttonelement.rs
@@ -19,6 +19,7 @@ use dom::validitystate::ValidityState;
 use dom::virtualmethods::VirtualMethods;
 
 use std::ascii::OwnedAsciiExt;
+use std::borrow::ToOwned;
 use servo_util::str::DOMString;
 use string_cache::Atom;
 
@@ -66,7 +67,7 @@ impl<'a> HTMLButtonElementMethods for JSRef<'a, HTMLButtonElement> {
         // https://html.spec.whatwg.org/multipage/forms.html#attr-button-type
         match ty.as_slice() {
             "reset" | "button" | "menu" => ty,
-            _ => "submit".into_string()
+            _ => "submit".to_owned()
         }
     }
 
diff --git a/components/script/dom/htmlelement.rs b/components/script/dom/htmlelement.rs
index d60591bb390..d5fae8353be 100644
--- a/components/script/dom/htmlelement.rs
+++ b/components/script/dom/htmlelement.rs
@@ -30,6 +30,7 @@ use servo_util::str::DOMString;
 
 use string_cache::Atom;
 
+use std::borrow::ToOwned;
 use std::default::Default;
 
 #[dom_struct]
@@ -141,7 +142,7 @@ pub trait HTMLElementCustomAttributeHelpers {
 }
 
 fn to_snake_case(name: DOMString) -> DOMString {
-    let mut attr_name = "data-".into_string();
+    let mut attr_name = "data-".to_owned();
     for ch in name.as_slice().chars() {
         if ch.is_uppercase() {
             attr_name.push('\x2d');
@@ -168,7 +169,7 @@ impl<'a> HTMLElementCustomAttributeHelpers for JSRef<'a, HTMLElement> {
         let element: JSRef<Element> = ElementCast::from_ref(self);
         element.get_attribute(ns!(""), &Atom::from_slice(to_snake_case(name).as_slice())).map(|attr| {
             let attr = attr.root();
-            attr.r().value().as_slice().into_string()
+            attr.r().value().as_slice().to_owned()
         })
     }
 
@@ -199,7 +200,7 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLElement> {
             let evtarget: JSRef<EventTarget> = EventTargetCast::from_ref(*self);
             evtarget.set_event_handler_uncompiled(cx, url, reflector,
                                                   name.slice_from(2),
-                                                  attr.value().as_slice().into_string());
+                                                  attr.value().as_slice().to_owned());
         }
     }
 }
diff --git a/components/script/dom/htmlformelement.rs b/components/script/dom/htmlformelement.rs
index fc8f9879c7b..7890dc1eb99 100644
--- a/components/script/dom/htmlformelement.rs
+++ b/components/script/dom/htmlformelement.rs
@@ -30,6 +30,7 @@ use url::UrlParser;
 use url::form_urlencoded::serialize;
 use string_cache::Atom;
 
+use std::borrow::ToOwned;
 use std::cell::Cell;
 
 #[dom_struct]
@@ -159,7 +160,7 @@ impl<'a> HTMLFormElementHelpers for JSRef<'a, HTMLFormElement> {
         // TODO: Handle browsing contexts
         // TODO: Handle validation
         let event = Event::new(GlobalRef::Window(win.r()),
-                               "submit".into_string(),
+                               "submit".to_owned(),
                                EventBubbles::Bubbles,
                                EventCancelable::Cancelable).root();
         event.r().set_trusted(true);
@@ -187,7 +188,7 @@ impl<'a> HTMLFormElementHelpers for JSRef<'a, HTMLFormElement> {
 
         let parsed_data = match enctype {
             FormEncType::UrlEncoded => serialize(form_data.iter().map(|d| (d.name.as_slice(), d.value.as_slice()))),
-            _ => "".into_string() // TODO: Add serializers for the other encoding types
+            _ => "".to_owned() // TODO: Add serializers for the other encoding types
         };
 
         let mut load_data = LoadData::new(action_components);
@@ -214,7 +215,7 @@ impl<'a> HTMLFormElementHelpers for JSRef<'a, HTMLFormElement> {
         fn clean_crlf(s: &str) -> DOMString {
             // https://html.spec.whatwg.org/multipage/forms.html#constructing-the-form-data-set
             // Step 4
-            let mut buf = "".into_string();
+            let mut buf = "".to_owned();
             let mut prev = ' ';
             for ch in s.chars() {
                 match ch {
@@ -284,7 +285,7 @@ impl<'a> HTMLFormElementHelpers for JSRef<'a, HTMLFormElement> {
                         "image" => None, // Unimplemented
                         "radio" | "checkbox" => {
                             if value.is_empty() {
-                                value = "on".into_string();
+                                value = "on".to_owned();
                             }
                             Some(FormDatum {
                                 ty: ty,
@@ -346,7 +347,7 @@ impl<'a> HTMLFormElementHelpers for JSRef<'a, HTMLFormElement> {
 
         let win = window_from_node(self).root();
         let event = Event::new(GlobalRef::Window(win.r()),
-                               "reset".into_string(),
+                               "reset".to_owned(),
                                EventBubbles::Bubbles,
                                EventCancelable::Cancelable).root();
         let target: JSRef<EventTarget> = EventTargetCast::from_ref(self);
@@ -513,7 +514,7 @@ pub trait FormControl<'a> : Copy {
         if self.to_element().has_attribute(attr) {
             input(self)
         } else {
-            self.form_owner().map_or("".into_string(), |t| owner(t.root().r()))
+            self.form_owner().map_or("".to_owned(), |t| owner(t.root().r()))
         }
     }
     fn to_element(self) -> JSRef<'a, Element>;
diff --git a/components/script/dom/htmlimageelement.rs b/components/script/dom/htmlimageelement.rs
index 0fb926666fa..3d6b8d28c7c 100644
--- a/components/script/dom/htmlimageelement.rs
+++ b/components/script/dom/htmlimageelement.rs
@@ -24,6 +24,8 @@ use string_cache::Atom;
 
 use url::{Url, UrlParser};
 
+use std::borrow::ToOwned;
+
 #[dom_struct]
 pub struct HTMLImageElement {
     htmlelement: HTMLElement,
@@ -189,7 +191,7 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLImageElement> {
             &atom!("src") => {
                 let window = window_from_node(*self).root();
                 let url = window.r().get_url();
-                self.update_image(Some((attr.value().as_slice().into_string(), &url)));
+                self.update_image(Some((attr.value().as_slice().to_owned(), &url)));
             },
             _ => ()
         }
diff --git a/components/script/dom/htmlinputelement.rs b/components/script/dom/htmlinputelement.rs
index 22da5bb20d7..55f7a102ce3 100644
--- a/components/script/dom/htmlinputelement.rs
+++ b/components/script/dom/htmlinputelement.rs
@@ -38,6 +38,7 @@ use servo_util::str::DOMString;
 use string_cache::Atom;
 
 use std::ascii::OwnedAsciiExt;
+use std::borrow::ToOwned;
 use std::cell::Cell;
 use std::default::Default;
 
@@ -116,7 +117,7 @@ impl HTMLInputElement {
             checked_changed: Cell::new(false),
             value_changed: Cell::new(false),
             size: Cell::new(DEFAULT_INPUT_SIZE),
-            textinput: DOMRefCell::new(TextInput::new(Single, "".into_string())),
+            textinput: DOMRefCell::new(TextInput::new(Single, "".to_owned())),
             activation_state: DOMRefCell::new(InputActivationState::new())
         }
     }
@@ -149,15 +150,15 @@ impl LayoutHTMLInputElementHelpers for JS<HTMLInputElement> {
         unsafe fn get_raw_attr_value(input: JS<HTMLInputElement>) -> Option<String> {
             let elem: JS<Element> = input.transmute_copy();
             (*elem.unsafe_get()).get_attr_val_for_layout(&ns!(""), &atom!("value"))
-                                .map(|s| s.into_string())
+                                .map(|s| s.to_owned())
         }
 
         match (*self.unsafe_get()).input_type.get() {
-            InputType::InputCheckbox | InputType::InputRadio => "".into_string(),
-            InputType::InputFile | InputType::InputImage => "".into_string(),
-            InputType::InputButton => get_raw_attr_value(self).unwrap_or_else(|| "".into_string()),
-            InputType::InputSubmit => get_raw_attr_value(self).unwrap_or_else(|| DEFAULT_SUBMIT_VALUE.into_string()),
-            InputType::InputReset => get_raw_attr_value(self).unwrap_or_else(|| DEFAULT_RESET_VALUE.into_string()),
+            InputType::InputCheckbox | InputType::InputRadio => "".to_owned(),
+            InputType::InputFile | InputType::InputImage => "".to_owned(),
+            InputType::InputButton => get_raw_attr_value(self).unwrap_or_else(|| "".to_owned()),
+            InputType::InputSubmit => get_raw_attr_value(self).unwrap_or_else(|| DEFAULT_SUBMIT_VALUE.to_owned()),
+            InputType::InputReset => get_raw_attr_value(self).unwrap_or_else(|| DEFAULT_RESET_VALUE.to_owned()),
             InputType::InputPassword => {
                 let raw = get_raw_textinput_value(self);
                 String::from_char(raw.char_len(), '●')
@@ -313,7 +314,7 @@ fn broadcast_radio_checked(broadcaster: JSRef<HTMLInputElement>, group: Option<&
 
     // There is no DOM tree manipulation here, so this is safe
     let mut iter = unsafe {
-        doc_node.query_selector_iter("input[type=radio]".into_string()).unwrap()
+        doc_node.query_selector_iter("input[type=radio]".to_owned()).unwrap()
                 .filter_map(|t| HTMLInputElementCast::to_ref(t))
                 .filter(|&r| in_same_group(r, owner.r(), group) && broadcaster != r)
     };
@@ -439,7 +440,7 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLInputElement> {
             }
             &atom!("value") => {
                 if !self.value_changed.get() {
-                    self.textinput.borrow_mut().set_content(attr.value().as_slice().into_string());
+                    self.textinput.borrow_mut().set_content(attr.value().as_slice().to_owned());
                     self.force_relayout();
                 }
             }
@@ -488,7 +489,7 @@ impl<'a> VirtualMethods for JSRef<'a, HTMLInputElement> {
             }
             &atom!("value") => {
                 if !self.value_changed.get() {
-                    self.textinput.borrow_mut().set_content("".into_string());
+                    self.textinput.borrow_mut().set_content("".to_owned());
                     self.force_relayout();
                 }
             }
@@ -639,7 +640,7 @@ impl<'a> Activatable for JSRef<'a, HTMLInputElement> {
 
                     // Safe since we only manipulate the DOM tree after finding an element
                     let checked_member = unsafe {
-                        doc_node.query_selector_iter("input[type=radio]".into_string()).unwrap()
+                        doc_node.query_selector_iter("input[type=radio]".to_owned()).unwrap()
                                 .filter_map(|t| HTMLInputElementCast::to_ref(t))
                                 .filter(|&r| in_same_group(r, owner.r(),
                                                            group.as_ref().map(|gr| gr.as_slice())))
@@ -739,7 +740,7 @@ impl<'a> Activatable for JSRef<'a, HTMLInputElement> {
                 if self.mutable() {
                     let win = window_from_node(*self).root();
                     let event = Event::new(GlobalRef::Window(win.r()),
-                                           "input".into_string(),
+                                           "input".to_owned(),
                                            EventBubbles::Bubbles,
                                            EventCancelable::NotCancelable).root();
                     event.r().set_trusted(true);
@@ -747,7 +748,7 @@ impl<'a> Activatable for JSRef<'a, HTMLInputElement> {
                     target.DispatchEvent(event.r()).ok();
 
                     let event = Event::new(GlobalRef::Window(win.r()),
-                                           "change".into_string(),
+                                           "change".to_owned(),
                                            EventBubbles::Bubbles,
                                            EventCancelable::NotCancelable).root();
                     event.r().set_trusted(true);
@@ -771,7 +772,7 @@ impl<'a> Activatable for JSRef<'a, HTMLInputElement> {
         // This is safe because we are stopping after finding the first element
         // and only then performing actions which may modify the DOM tree
         unsafe {
-            node.query_selector_iter("input[type=submit]".into_string()).unwrap()
+            node.query_selector_iter("input[type=submit]".to_owned()).unwrap()
                 .filter_map(|t| HTMLInputElementCast::to_ref(t))
                 .find(|r| r.form_owner() == owner)
                 .map(|s| s.synthetic_click_activation(ctrlKey, shiftKey, altKey, metaKey));
diff --git a/components/script/dom/htmllinkelement.rs b/components/script/dom/htmllinkelement.rs
index e4febefa004..49018903a5a 100644
--- a/components/script/dom/htmllinkelement.rs
+++ b/components/script/dom/htmllinkelement.rs
@@ -21,6 +21,7 @@ use layout_interface::{LayoutChan, Msg};
 use servo_util::str::{DOMString, HTML_SPACE_CHARACTERS};
 
 use std::ascii::AsciiExt;
+use std::borrow::ToOwned;
 use std::default::Default;
 use url::UrlParser;
 use string_cache::Atom;
@@ -54,7 +55,7 @@ impl HTMLLinkElement {
 
 fn get_attr(element: JSRef<Element>, name: &Atom) -> Option<String> {
     let elem = element.get_attribute(ns!(""), name).root();
-    elem.map(|e| e.r().value().as_slice().into_string())
+    elem.map(|e| e.r().value().as_slice().to_owned())
 }
 
 fn is_stylesheet(value: &Option<String>) -> bool {
diff --git a/components/script/dom/htmlscriptelement.rs b/components/script/dom/htmlscriptelement.rs
index c2af3ae9f6a..317769d23db 100644
--- a/components/script/dom/htmlscriptelement.rs
+++ b/components/script/dom/htmlscriptelement.rs
@@ -31,6 +31,7 @@ use encoding::all::UTF_8;
 use encoding::types::{Encoding, DecoderTrap};
 use servo_net::resource_task::load_whole_resource;
 use servo_util::str::{DOMString, HTML_SPACE_CHARACTERS, StaticStringVec};
+use std::borrow::ToOwned;
 use std::cell::Cell;
 use string_cache::Atom;
 use url::UrlParser;
@@ -239,7 +240,7 @@ impl<'a> HTMLScriptElementHelpers for JSRef<'a, HTMLScriptElement> {
         let window = window_from_node(self).root();
         let window = window.r();
         let event = Event::new(GlobalRef::Window(window),
-                               "load".into_string(),
+                               "load".to_owned(),
                                EventBubbles::DoesNotBubble,
                                EventCancelable::NotCancelable).root();
         event.r().set_trusted(true);
diff --git a/components/script/dom/htmlselectelement.rs b/components/script/dom/htmlselectelement.rs
index dcef30bf1ac..fce7277d6a9 100644
--- a/components/script/dom/htmlselectelement.rs
+++ b/components/script/dom/htmlselectelement.rs
@@ -23,6 +23,8 @@ use dom::virtualmethods::VirtualMethods;
 use servo_util::str::DOMString;
 use string_cache::Atom;
 
+use std::borrow::ToOwned;
+
 #[dom_struct]
 pub struct HTMLSelectElement {
     htmlelement: HTMLElement
@@ -68,9 +70,9 @@ impl<'a> HTMLSelectElementMethods for JSRef<'a, HTMLSelectElement> {
     fn Type(self) -> DOMString {
         let elem: JSRef<Element> = ElementCast::from_ref(self);
         if elem.has_attribute(&atom!("multiple")) {
-            "select-multiple".into_string()
+            "select-multiple".to_owned()
         } else {
-            "select-one".into_string()
+            "select-one".to_owned()
         }
     }
 }
diff --git a/components/script/dom/htmlserializer.rs b/components/script/dom/htmlserializer.rs
index b4c3662fd30..a0ab5b82d03 100644
--- a/components/script/dom/htmlserializer.rs
+++ b/components/script/dom/htmlserializer.rs
@@ -15,6 +15,8 @@ use dom::node::{Node, NodeHelpers, NodeTypeId, NodeIterator};
 use dom::processinginstruction::ProcessingInstruction;
 use dom::text::Text;
 
+use std::borrow::ToOwned;
+
 #[allow(unrooted_must_root)]
 pub fn serialize(iterator: &mut NodeIterator) -> String {
     let mut html = String::new();
@@ -126,7 +128,7 @@ fn serialize_elem(elem: JSRef<Element>, open_elements: &mut Vec<String>, html: &
     }
 
     if !(elem.is_void()) {
-        open_elements.push(elem.local_name().as_slice().into_string());
+        open_elements.push(elem.local_name().as_slice().to_owned());
     }
 }
 
diff --git a/components/script/dom/htmltextareaelement.rs b/components/script/dom/htmltextareaelement.rs
index c5d3c1593c1..8ede6e716ae 100644
--- a/components/script/dom/htmltextareaelement.rs
+++ b/components/script/dom/htmltextareaelement.rs
@@ -29,6 +29,7 @@ use dom::virtualmethods::VirtualMethods;
 use servo_util::str::DOMString;
 use string_cache::Atom;
 
+use std::borrow::ToOwned;
 use std::cell::Cell;
 
 #[dom_struct]
@@ -83,7 +84,7 @@ impl HTMLTextAreaElement {
     fn new_inherited(localName: DOMString, prefix: Option<DOMString>, document: JSRef<Document>) -> HTMLTextAreaElement {
         HTMLTextAreaElement {
             htmlelement: HTMLElement::new_inherited(HTMLElementTypeId::HTMLTextAreaElement, localName, prefix, document),
-            textinput: DOMRefCell::new(TextInput::new(Lines::Multiple, "".into_string())),
+            textinput: DOMRefCell::new(TextInput::new(Lines::Multiple, "".to_owned())),
             cols: Cell::new(DEFAULT_COLS),
             rows: Cell::new(DEFAULT_ROWS),
             value_changed: Cell::new(false),
@@ -151,7 +152,7 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
 
     // https://html.spec.whatwg.org/multipage/forms.html#dom-textarea-type
     fn Type(self) -> DOMString {
-        "textarea".into_string()
+        "textarea".to_owned()
     }
 
     // https://html.spec.whatwg.org/multipage/forms.html#dom-textarea-defaultvalue
diff --git a/components/script/dom/keyboardevent.rs b/components/script/dom/keyboardevent.rs
index e28f1c90c6c..cf4cadca3a1 100644
--- a/components/script/dom/keyboardevent.rs
+++ b/components/script/dom/keyboardevent.rs
@@ -15,6 +15,8 @@ use dom::uievent::UIEvent;
 use dom::window::Window;
 use servo_msg::constellation_msg;
 use servo_util::str::DOMString;
+
+use std::borrow::ToOwned;
 use std::cell::{RefCell, Cell};
 
 #[jstraceable]
@@ -44,8 +46,8 @@ impl KeyboardEvent {
     fn new_inherited() -> KeyboardEvent {
         KeyboardEvent {
             uievent: UIEvent::new_inherited(EventTypeId::KeyboardEvent),
-            key: RefCell::new("".into_string()),
-            code: RefCell::new("".into_string()),
+            key: RefCell::new("".to_owned()),
+            code: RefCell::new("".to_owned()),
             location: Cell::new(0),
             ctrl: Cell::new(false),
             alt: Cell::new(false),
@@ -83,7 +85,7 @@ impl KeyboardEvent {
                key_code: u32) -> Temporary<KeyboardEvent> {
         let ev = KeyboardEvent::new_uninitialized(window).root();
         ev.r().InitKeyboardEvent(type_, canBubble, cancelable, view, key, location,
-                                 "".into_string(), repeat, "".into_string());
+                                 "".to_owned(), repeat, "".to_owned());
         *ev.r().code.borrow_mut() = code;
         ev.r().ctrl.set(ctrlKey);
         ev.r().alt.set(altKey);
diff --git a/components/script/dom/macros.rs b/components/script/dom/macros.rs
index e67f04b30ba..646baabf785 100644
--- a/components/script/dom/macros.rs
+++ b/components/script/dom/macros.rs
@@ -106,13 +106,14 @@ macro_rules! make_enumerated_getter(
             use dom::bindings::codegen::InheritTypes::ElementCast;
             #[allow(unused_imports)]
             use std::ascii::AsciiExt;
+            use std::borrow::ToOwned;
             let element: JSRef<Element> = ElementCast::from_ref(self);
             let val = element.get_string_attribute(&Atom::from_slice($htmlname))
                              .into_ascii_lower();
             // https://html.spec.whatwg.org/multipage/forms.html#attr-fs-method
             match val.as_slice() {
                 $($choices)|+ => val,
-                _ => $default.into_string()
+                _ => $default.to_owned()
             }
         }
     );
diff --git a/components/script/dom/messageevent.rs b/components/script/dom/messageevent.rs
index 976c7520378..7cae6302073 100644
--- a/components/script/dom/messageevent.rs
+++ b/components/script/dom/messageevent.rs
@@ -18,6 +18,8 @@ use servo_util::str::DOMString;
 use js::jsapi::JSContext;
 use js::jsval::{JSVal, UndefinedValue};
 
+use std::borrow::ToOwned;
+
 #[dom_struct]
 pub struct MessageEvent {
     event: Event,
@@ -44,7 +46,7 @@ impl MessageEvent {
     }
 
     pub fn new_uninitialized(global: GlobalRef) -> Temporary<MessageEvent> {
-        MessageEvent::new_initialized(global, UndefinedValue(), "".into_string(), "".into_string())
+        MessageEvent::new_initialized(global, UndefinedValue(), "".to_owned(), "".to_owned())
     }
 
     pub fn new_initialized(global: GlobalRef, data: JSVal, origin: DOMString, lastEventId: DOMString) -> Temporary<MessageEvent> {
@@ -78,8 +80,8 @@ impl MessageEvent {
                           scope: GlobalRef,
                           message: JSVal) {
         let messageevent = MessageEvent::new(
-            scope, "message".into_string(), false, false, message,
-            "".into_string(), "".into_string()).root();
+            scope, "message".to_owned(), false, false, message,
+            "".to_owned(), "".to_owned()).root();
         let event: JSRef<Event> = EventCast::from_ref(messageevent.r());
         target.dispatch_event(event);
     }
diff --git a/components/script/dom/navigatorinfo.rs b/components/script/dom/navigatorinfo.rs
index 0dff42d88ea..b8fabd01acf 100644
--- a/components/script/dom/navigatorinfo.rs
+++ b/components/script/dom/navigatorinfo.rs
@@ -5,8 +5,10 @@
 use servo_util::str::DOMString;
 use servo_util::opts;
 
+use std::borrow::ToOwned;
+
 pub fn Product() -> DOMString {
-    "Gecko".into_string()
+    "Gecko".to_owned()
 }
 
 pub fn TaintEnabled() -> bool {
@@ -14,20 +16,20 @@ pub fn TaintEnabled() -> bool {
 }
 
 pub fn AppName() -> DOMString {
-    "Netscape".into_string() // Like Gecko/Webkit
+    "Netscape".to_owned() // Like Gecko/Webkit
 }
 
 pub fn AppCodeName() -> DOMString {
-    "Mozilla".into_string()
+    "Mozilla".to_owned()
 }
 
 pub fn Platform() -> DOMString {
-    "".into_string()
+    "".to_owned()
 }
 
 pub fn UserAgent() -> DOMString {
     match opts::get().user_agent {
         Some(ref user_agent) => user_agent.clone(),
-        None => "".into_string(),
+        None => "".to_owned(),
     }
 }
diff --git a/components/script/dom/node.rs b/components/script/dom/node.rs
index 83c14208cbb..d65a82880c5 100644
--- a/components/script/dom/node.rs
+++ b/components/script/dom/node.rs
@@ -54,6 +54,7 @@ use js::jsapi::{JSContext, JSObject, JSTracer, JSRuntime};
 use js::jsfriendapi;
 use libc;
 use libc::{uintptr_t, c_void};
+use std::borrow::ToOwned;
 use std::cell::{Cell, RefCell, Ref, RefMut};
 use std::default::Default;
 use std::iter::{FilterMap, Peekable};
@@ -854,17 +855,17 @@ impl<'a> NodeHelpers<'a> for JSRef<'a, Node> {
 
         NodeInfo {
             uniqueId: self.unique_id.borrow().clone(),
-            baseURI: self.GetBaseURI().unwrap_or("".into_string()),
-            parent: self.GetParentNode().root().map(|node| node.r().get_unique_id()).unwrap_or("".into_string()),
+            baseURI: self.GetBaseURI().unwrap_or("".to_owned()),
+            parent: self.GetParentNode().root().map(|node| node.r().get_unique_id()).unwrap_or("".to_owned()),
             nodeType: self.NodeType() as uint,
-            namespaceURI: "".into_string(), //FIXME
+            namespaceURI: "".to_owned(), //FIXME
             nodeName: self.NodeName(),
             numChildren: self.ChildNodes().root().r().Length() as uint,
 
             //FIXME doctype nodes only
-            name: "".into_string(),
-            publicId: "".into_string(),
-            systemId: "".into_string(),
+            name: "".to_owned(),
+            publicId: "".to_owned(),
+            systemId: "".to_owned(),
 
             attrs: match ElementCast::to_ref(self) {
                 Some(element) => element.summarize(),
@@ -878,7 +879,7 @@ impl<'a> NodeHelpers<'a> for JSRef<'a, Node> {
                     .map(|elem| NodeCast::from_ref(elem.root().r()) == self)
                     .unwrap_or(false),
 
-            shortValue: self.GetNodeValue().unwrap_or("".into_string()), //FIXME: truncate
+            shortValue: self.GetNodeValue().unwrap_or("".to_owned()), //FIXME: truncate
             incompleteValue: false, //FIXME: reflect truncation
         }
     }
@@ -1567,7 +1568,7 @@ impl Node {
                     local: element.local_name().clone()
                 };
                 let element = Element::create(name,
-                    element.prefix().as_ref().map(|p| p.as_slice().into_string()),
+                    element.prefix().as_ref().map(|p| p.as_slice().to_owned()),
                     document.r(), ElementCreator::ScriptCreated);
                 NodeCast::from_temporary(element)
             },
@@ -1680,19 +1681,19 @@ impl<'a> NodeMethods for JSRef<'a, Node> {
                 let elem: JSRef<Element> = ElementCast::to_ref(self).unwrap();
                 elem.TagName()
             }
-            NodeTypeId::Text => "#text".into_string(),
+            NodeTypeId::Text => "#text".to_owned(),
             NodeTypeId::ProcessingInstruction => {
                 let processing_instruction: JSRef<ProcessingInstruction> =
                     ProcessingInstructionCast::to_ref(self).unwrap();
                 processing_instruction.Target()
             }
-            NodeTypeId::Comment => "#comment".into_string(),
+            NodeTypeId::Comment => "#comment".to_owned(),
             NodeTypeId::DocumentType => {
                 let doctype: JSRef<DocumentType> = DocumentTypeCast::to_ref(self).unwrap();
                 doctype.name().clone()
             },
-            NodeTypeId::DocumentFragment => "#document-fragment".into_string(),
-            NodeTypeId::Document => "#document".into_string()
+            NodeTypeId::DocumentFragment => "#document-fragment".to_owned(),
+            NodeTypeId::Document => "#document".to_owned()
         }
     }
 
diff --git a/components/script/dom/testbinding.rs b/components/script/dom/testbinding.rs
index fc222a4f604..2d0b58ec923 100644
--- a/components/script/dom/testbinding.rs
+++ b/components/script/dom/testbinding.rs
@@ -22,6 +22,8 @@ use servo_util::str::DOMString;
 use js::jsapi::{JSContext, JSObject};
 use js::jsval::{JSVal, NullValue};
 
+use std::borrow::ToOwned;
+
 #[dom_struct]
 pub struct TestBinding {
     reflector: Reflector,
@@ -51,7 +53,7 @@ impl<'a> TestBindingMethods for JSRef<'a, TestBinding> {
     fn SetFloatAttribute(self, _: f32) {}
     fn DoubleAttribute(self) -> f64 { 0. }
     fn SetDoubleAttribute(self, _: f64) {}
-    fn StringAttribute(self) -> DOMString { "".into_string() }
+    fn StringAttribute(self) -> DOMString { "".to_owned() }
     fn SetStringAttribute(self, _: DOMString) {}
     fn ByteStringAttribute(self) -> ByteString { ByteString::new(vec!()) }
     fn SetByteStringAttribute(self, _: ByteString) {}
@@ -64,7 +66,7 @@ impl<'a> TestBindingMethods for JSRef<'a, TestBinding> {
     fn SetInterfaceAttribute(self, _: JSRef<Blob>) {}
     fn UnionAttribute(self) -> HTMLElementOrLong { eLong(0) }
     fn SetUnionAttribute(self, _: HTMLElementOrLong) {}
-    fn Union2Attribute(self) -> EventOrString { eString("".into_string()) }
+    fn Union2Attribute(self) -> EventOrString { eString("".to_owned()) }
     fn SetUnion2Attribute(self, _: EventOrString) {}
     fn ArrayAttribute(self, _: *mut JSContext) -> *mut JSObject { NullValue().to_object_or_null() }
     fn AnyAttribute(self, _: *mut JSContext) -> JSVal { NullValue() }
@@ -94,7 +96,7 @@ impl<'a> TestBindingMethods for JSRef<'a, TestBinding> {
     fn SetDoubleAttributeNullable(self, _: Option<f64>) {}
     fn GetByteStringAttributeNullable(self) -> Option<ByteString> { Some(ByteString::new(vec!())) }
     fn SetByteStringAttributeNullable(self, _: Option<ByteString>) {}
-    fn GetStringAttributeNullable(self) -> Option<DOMString> { Some("".into_string()) }
+    fn GetStringAttributeNullable(self) -> Option<DOMString> { Some("".to_owned()) }
     fn SetStringAttributeNullable(self, _: Option<DOMString>) {}
     fn GetEnumAttributeNullable(self) -> Option<TestEnum> { Some(_empty) }
     fn GetInterfaceAttributeNullable(self) -> Option<Temporary<Blob>> {
@@ -104,7 +106,7 @@ impl<'a> TestBindingMethods for JSRef<'a, TestBinding> {
     fn SetInterfaceAttributeNullable(self, _: Option<JSRef<Blob>>) {}
     fn GetUnionAttributeNullable(self) -> Option<HTMLElementOrLong> { Some(eLong(0)) }
     fn SetUnionAttributeNullable(self, _: Option<HTMLElementOrLong>) {}
-    fn GetUnion2AttributeNullable(self) -> Option<EventOrString> { Some(eString("".into_string())) }
+    fn GetUnion2AttributeNullable(self) -> Option<EventOrString> { Some(eString("".to_owned())) }
     fn SetUnion2AttributeNullable(self, _: Option<EventOrString>) {}
     fn ReceiveVoid(self) -> () {}
     fn ReceiveBoolean(self) -> bool { false }
@@ -118,7 +120,7 @@ impl<'a> TestBindingMethods for JSRef<'a, TestBinding> {
     fn ReceiveUnsignedLongLong(self) -> u64 { 0 }
     fn ReceiveFloat(self) -> f32 { 0. }
     fn ReceiveDouble(self) -> f64 { 0. }
-    fn ReceiveString(self) -> DOMString { "".into_string() }
+    fn ReceiveString(self) -> DOMString { "".to_owned() }
     fn ReceiveByteString(self) -> ByteString { ByteString::new(vec!()) }
     fn ReceiveEnum(self) -> TestEnum { _empty }
     fn ReceiveInterface(self) -> Temporary<Blob> {
@@ -127,7 +129,7 @@ impl<'a> TestBindingMethods for JSRef<'a, TestBinding> {
     }
     fn ReceiveAny(self, _: *mut JSContext) -> JSVal { NullValue() }
     fn ReceiveUnion(self) -> HTMLElementOrLong { eLong(0) }
-    fn ReceiveUnion2(self) -> EventOrString { eString("".into_string()) }
+    fn ReceiveUnion2(self) -> EventOrString { eString("".to_owned()) }
 
     fn ReceiveNullableBoolean(self) -> Option<bool> { Some(false) }
     fn ReceiveNullableByte(self) -> Option<i8> { Some(0) }
@@ -140,7 +142,7 @@ impl<'a> TestBindingMethods for JSRef<'a, TestBinding> {
     fn ReceiveNullableUnsignedLongLong(self) -> Option<u64> { Some(0) }
     fn ReceiveNullableFloat(self) -> Option<f32> { Some(0.) }
     fn ReceiveNullableDouble(self) -> Option<f64> { Some(0.) }
-    fn ReceiveNullableString(self) -> Option<DOMString> { Some("".into_string()) }
+    fn ReceiveNullableString(self) -> Option<DOMString> { Some("".to_owned()) }
     fn ReceiveNullableByteString(self) -> Option<ByteString> { Some(ByteString::new(vec!())) }
     fn ReceiveNullableEnum(self) -> Option<TestEnum> { Some(_empty) }
     fn ReceiveNullableInterface(self) -> Option<Temporary<Blob>> {
@@ -148,7 +150,7 @@ impl<'a> TestBindingMethods for JSRef<'a, TestBinding> {
         Some(Blob::new(global.r(), None, ""))
     }
     fn ReceiveNullableUnion(self) -> Option<HTMLElementOrLong> { Some(eLong(0)) }
-    fn ReceiveNullableUnion2(self) -> Option<EventOrString> { Some(eString("".into_string())) }
+    fn ReceiveNullableUnion2(self) -> Option<EventOrString> { Some(eString("".to_owned())) }
 
     fn PassBoolean(self, _: bool) {}
     fn PassByte(self, _: i8) {}
diff --git a/components/script/dom/urlhelper.rs b/components/script/dom/urlhelper.rs
index 8f3a005127d..290fede857c 100644
--- a/components/script/dom/urlhelper.rs
+++ b/components/script/dom/urlhelper.rs
@@ -5,6 +5,8 @@
 use servo_util::str::DOMString;
 use url::Url;
 
+use std::borrow::ToOwned;
+
 pub struct UrlHelper;
 
 impl UrlHelper {
@@ -14,16 +16,16 @@ impl UrlHelper {
 
     pub fn Search(url: &Url) -> DOMString {
         match url.query {
-            None => "".into_string(),
-            Some(ref query) if query.as_slice() == "" => "".into_string(),
+            None => "".to_owned(),
+            Some(ref query) if query.as_slice() == "" => "".to_owned(),
             Some(ref query) => format!("?{}", query)
         }
     }
 
     pub fn Hash(url: &Url) -> DOMString {
         match url.fragment {
-            None => "".into_string(),
-            Some(ref hash) if hash.as_slice() == "" => "".into_string(),
+            None => "".to_owned(),
+            Some(ref hash) if hash.as_slice() == "" => "".to_owned(),
             Some(ref hash) => format!("#{}", hash)
         }
     }
diff --git a/components/script/dom/xmlhttprequest.rs b/components/script/dom/xmlhttprequest.rs
index a5d5c767a72..4572d3221c7 100644
--- a/components/script/dom/xmlhttprequest.rs
+++ b/components/script/dom/xmlhttprequest.rs
@@ -50,6 +50,7 @@ use servo_util::str::DOMString;
 use servo_util::task::spawn_named;
 
 use std::ascii::AsciiExt;
+use std::borrow::ToOwned;
 use std::cell::Cell;
 use std::comm::{Sender, Receiver, channel};
 use std::default::Default;
@@ -168,7 +169,7 @@ impl XMLHttpRequest {
             timeout: Cell::new(0u32),
             with_credentials: Cell::new(false),
             upload: JS::from_rooted(XMLHttpRequestUpload::new(global)),
-            response_url: "".into_string(),
+            response_url: "".to_owned(),
             status: Cell::new(0),
             status_text: DOMRefCell::new(ByteString::new(vec!())),
             response: DOMRefCell::new(ByteString::new(vec!())),
@@ -454,7 +455,7 @@ impl<'a> XMLHttpRequestMethods for JSRef<'a, XMLHttpRequest> {
             None => {}
         }
 
-        headers.set_raw(name_str.into_string(), vec![value.as_slice().to_vec()]);
+        headers.set_raw(name_str.to_owned(), vec![value.as_slice().to_vec()]);
         Ok(())
     }
     fn Timeout(self) -> u32 {
@@ -525,12 +526,12 @@ impl<'a> XMLHttpRequestMethods for JSRef<'a, XMLHttpRequest> {
             // If one of the event handlers below aborts the fetch by calling
             // abort or open we will need the current generation id to detect it.
             let gen_id = self.generation_id.get();
-            self.dispatch_response_progress_event("loadstart".into_string());
+            self.dispatch_response_progress_event("loadstart".to_owned());
             if self.generation_id.get() != gen_id {
                 return Ok(());
             }
             if !self.upload_complete.get() {
-                self.dispatch_upload_progress_event("loadstart".into_string(), Some(0));
+                self.dispatch_upload_progress_event("loadstart".to_owned(), Some(0));
                 if self.generation_id.get() != gen_id {
                     return Ok(());
                 }
@@ -562,10 +563,10 @@ impl<'a> XMLHttpRequestMethods for JSRef<'a, XMLHttpRequest> {
                 let n = "content-type";
                 match data {
                     Some(eString(_)) =>
-                        request_headers.set_raw(n.into_string(), vec![join_raw("text/plain", params)]),
+                        request_headers.set_raw(n.to_owned(), vec![join_raw("text/plain", params)]),
                     Some(eURLSearchParams(_)) =>
                         request_headers.set_raw(
-                            n.into_string(), vec![join_raw("application/x-www-form-urlencoded", params)]),
+                            n.to_owned(), vec![join_raw("application/x-www-form-urlencoded", params)]),
                     None => ()
                 }
             }
@@ -602,9 +603,9 @@ impl<'a> XMLHttpRequestMethods for JSRef<'a, XMLHttpRequest> {
                     buf.push_str(format!("{}", p).as_slice());
                 });
                 referer_url.serialize_path().map(|ref h| buf.push_str(h.as_slice()));
-                self.request_headers.borrow_mut().set_raw("Referer".into_string(), vec![buf.into_bytes()]);
+                self.request_headers.borrow_mut().set_raw("Referer".to_owned(), vec![buf.into_bytes()]);
             },
-            Ok(Some(ref req)) => self.insert_trusted_header("origin".into_string(),
+            Ok(Some(ref req)) => self.insert_trusted_header("origin".to_owned(),
                                                             format!("{}", req.origin)),
             _ => {}
         }
@@ -705,7 +706,7 @@ impl<'a> XMLHttpRequestMethods for JSRef<'a, XMLHttpRequest> {
             },
             _ if self.ready_state.get() != XMLHttpRequestState::XHRDone => NullValue(),
             Json => {
-                let decoded = UTF_8.decode(self.response.borrow().as_slice(), DecoderTrap::Replace).unwrap().into_string();
+                let decoded = UTF_8.decode(self.response.borrow().as_slice(), DecoderTrap::Replace).unwrap().to_owned();
                 let decoded: Vec<u16> = decoded.as_slice().utf16_units().collect();
                 let mut vp = UndefinedValue();
                 unsafe {
@@ -727,7 +728,7 @@ impl<'a> XMLHttpRequestMethods for JSRef<'a, XMLHttpRequest> {
             _empty | Text => {
                 match self.ready_state.get() {
                     XMLHttpRequestState::Loading | XMLHttpRequestState::XHRDone => Ok(self.text_response()),
-                    _ => Ok("".into_string())
+                    _ => Ok("".to_owned())
                 }
             },
             _ => Err(InvalidState)
@@ -770,7 +771,7 @@ impl<'a> PrivateXMLHttpRequestHelpers for JSRef<'a, XMLHttpRequest> {
         self.ready_state.set(rs);
         let global = self.global.root();
         let event = Event::new(global.r(),
-                               "readystatechange".into_string(),
+                               "readystatechange".to_owned(),
                                EventBubbles::DoesNotBubble,
                                EventCancelable::Cancelable).root();
         let target: JSRef<EventTarget> = EventTargetCast::from_ref(self);
@@ -804,11 +805,11 @@ impl<'a> PrivateXMLHttpRequestHelpers for JSRef<'a, XMLHttpRequest> {
                 self.upload_complete.set(true);
                 // Substeps 2-4
                 if !self.sync.get() {
-                    self.dispatch_upload_progress_event("progress".into_string(), None);
+                    self.dispatch_upload_progress_event("progress".to_owned(), None);
                     return_if_fetch_was_terminated!();
-                    self.dispatch_upload_progress_event("load".into_string(), None);
+                    self.dispatch_upload_progress_event("load".to_owned(), None);
                     return_if_fetch_was_terminated!();
-                    self.dispatch_upload_progress_event("loadend".into_string(), None);
+                    self.dispatch_upload_progress_event("loadend".to_owned(), None);
                     return_if_fetch_was_terminated!();
                 }
                 // Part of step 13, send() (processing response)
@@ -836,7 +837,7 @@ impl<'a> PrivateXMLHttpRequestHelpers for JSRef<'a, XMLHttpRequest> {
                         self.change_ready_state(XMLHttpRequestState::Loading);
                         return_if_fetch_was_terminated!();
                     }
-                    self.dispatch_response_progress_event("progress".into_string());
+                    self.dispatch_response_progress_event("progress".to_owned());
                 }
             },
             XHRProgress::Done(_) => {
@@ -852,11 +853,11 @@ impl<'a> PrivateXMLHttpRequestHelpers for JSRef<'a, XMLHttpRequest> {
                 self.change_ready_state(XMLHttpRequestState::XHRDone);
                 return_if_fetch_was_terminated!();
                 // Subsubsteps 10-12
-                self.dispatch_response_progress_event("progress".into_string());
+                self.dispatch_response_progress_event("progress".to_owned());
                 return_if_fetch_was_terminated!();
-                self.dispatch_response_progress_event("load".into_string());
+                self.dispatch_response_progress_event("load".to_owned());
                 return_if_fetch_was_terminated!();
-                self.dispatch_response_progress_event("loadend".into_string());
+                self.dispatch_response_progress_event("loadend".to_owned());
             },
             XHRProgress::Errored(_, e) => {
                 self.send_flag.set(false);
@@ -873,18 +874,18 @@ impl<'a> PrivateXMLHttpRequestHelpers for JSRef<'a, XMLHttpRequest> {
                 let upload_complete: &Cell<bool> = &self.upload_complete;
                 if !upload_complete.get() {
                     upload_complete.set(true);
-                    self.dispatch_upload_progress_event("progress".into_string(), None);
+                    self.dispatch_upload_progress_event("progress".to_owned(), None);
                     return_if_fetch_was_terminated!();
-                    self.dispatch_upload_progress_event(errormsg.into_string(), None);
+                    self.dispatch_upload_progress_event(errormsg.to_owned(), None);
                     return_if_fetch_was_terminated!();
-                    self.dispatch_upload_progress_event("loadend".into_string(), None);
+                    self.dispatch_upload_progress_event("loadend".to_owned(), None);
                     return_if_fetch_was_terminated!();
                 }
-                self.dispatch_response_progress_event("progress".into_string());
+                self.dispatch_response_progress_event("progress".to_owned());
                 return_if_fetch_was_terminated!();
-                self.dispatch_response_progress_event(errormsg.into_string());
+                self.dispatch_response_progress_event(errormsg.to_owned());
                 return_if_fetch_was_terminated!();
-                self.dispatch_response_progress_event("loadend".into_string());
+                self.dispatch_response_progress_event("loadend".to_owned());
             }
         }
     }
@@ -970,7 +971,7 @@ impl<'a> PrivateXMLHttpRequestHelpers for JSRef<'a, XMLHttpRequest> {
 
         // According to Simon, decode() should never return an error, so unwrap()ing
         // the result should be fine. XXXManishearth have a closer look at this later
-        encoding.decode(self.response.borrow().as_slice(), DecoderTrap::Replace).unwrap().into_string()
+        encoding.decode(self.response.borrow().as_slice(), DecoderTrap::Replace).unwrap().to_owned()
     }
     fn filter_response_headers(self) -> Headers {
         // http://fetch.spec.whatwg.org/#concept-response-header-list
diff --git a/components/script/script_task.rs b/components/script/script_task.rs
index 46488446b9d..d75f1f06c9e 100644
--- a/components/script/script_task.rs
+++ b/components/script/script_task.rs
@@ -79,6 +79,7 @@ use url::Url;
 
 use libc;
 use std::any::{Any, AnyRefExt};
+use std::borrow::ToOwned;
 use std::cell::Cell;
 use std::comm::{channel, Sender, Receiver, Select};
 use std::fmt::{mod, Show};
@@ -846,7 +847,7 @@ impl ScriptTask {
             let jsval = window.r().evaluate_js_on_global_with_result(evalstr);
             let strval = FromJSValConvertible::from_jsval(self.get_cx(), jsval,
                                                           StringificationBehavior::Empty);
-            (HTMLInput::InputString(strval.unwrap_or("".into_string())), doc_url)
+            (HTMLInput::InputString(strval.unwrap_or("".to_owned())), doc_url)
         };
 
         parse_html(document.r(), parser_input, &final_url);
@@ -1002,13 +1003,13 @@ impl ScriptTask {
         let ev_type = match state {
             KeyState::Pressed | KeyState::Repeated => "keydown",
             KeyState::Released => "keyup",
-        }.into_string();
+        }.to_owned();
 
         let props = KeyboardEvent::key_properties(key, modifiers);
 
         let keyevent = KeyboardEvent::new(window.r(), ev_type, true, true,
                                           Some(window.r()), 0,
-                                          props.key.into_string(), props.code.into_string(),
+                                          props.key.to_owned(), props.code.to_owned(),
                                           props.location, is_repeating, is_composing,
                                           ctrl, alt, shift, meta,
                                           None, props.key_code).root();
@@ -1019,9 +1020,9 @@ impl ScriptTask {
         // https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#keys-cancelable-keys
         if state != KeyState::Released && props.is_printable() && !prevented {
             // https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#keypress-event-order
-            let event = KeyboardEvent::new(window.r(), "keypress".into_string(),
+            let event = KeyboardEvent::new(window.r(), "keypress".to_owned(),
                                            true, true, Some(window.r()),
-                                           0, props.key.into_string(), props.code.into_string(),
+                                           0, props.key.to_owned(), props.code.to_owned(),
                                            props.location, is_repeating, is_composing,
                                            ctrl, alt, shift, meta,
                                            props.char_code, 0).root();
@@ -1105,7 +1106,7 @@ impl ScriptTask {
                 // http://dev.w3.org/csswg/cssom-view/#resizing-viewports
                 // https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#event-type-resize
                 let uievent = UIEvent::new(window.r(),
-                                           "resize".into_string(), false,
+                                           "resize".to_owned(), false,
                                            false, Some(window.r()),
                                            0i32).root();
                 let event: JSRef<Event> = EventCast::from_ref(uievent.r());
@@ -1156,7 +1157,7 @@ impl ScriptTask {
 
                                 let event =
                                     Event::new(GlobalRef::Window(window.r()),
-                                               "click".into_string(),
+                                               "click".to_owned(),
                                                EventBubbles::Bubbles,
                                                EventCancelable::Cancelable).root();
                                 // https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#trusted-events
@@ -1208,7 +1209,7 @@ impl ScriptTask {
                       let y = point.y.to_i32().unwrap_or(0);
 
                       let mouse_event = MouseEvent::new(window.r(),
-                          "mousemove".into_string(),
+                          "mousemove".to_owned(),
                           true,
                           true,
                           Some(window.r()),
@@ -1360,7 +1361,7 @@ impl DocumentProgressHandler {
     fn dispatch_dom_content_loaded(&self) {
         let document = self.addr.to_temporary().root();
         let window = document.r().window().root();
-        let event = Event::new(GlobalRef::Window(window.r()), "DOMContentLoaded".into_string(),
+        let event = Event::new(GlobalRef::Window(window.r()), "DOMContentLoaded".to_owned(),
                                EventBubbles::DoesNotBubble,
                                EventCancelable::NotCancelable).root();
         let doctarget: JSRef<EventTarget> = EventTargetCast::from_ref(document.r());
@@ -1375,7 +1376,7 @@ impl DocumentProgressHandler {
     fn dispatch_load(&self) {
         let document = self.addr.to_temporary().root();
         let window = document.r().window().root();
-        let event = Event::new(GlobalRef::Window(window.r()), "load".into_string(),
+        let event = Event::new(GlobalRef::Window(window.r()), "load".to_owned(),
                                EventBubbles::DoesNotBubble,
                                EventCancelable::NotCancelable).root();
         let wintarget: JSRef<EventTarget> = EventTargetCast::from_ref(window.r());
diff --git a/components/script/textinput.rs b/components/script/textinput.rs
index 15dc23d677b..c2c183d022c 100644
--- a/components/script/textinput.rs
+++ b/components/script/textinput.rs
@@ -9,6 +9,7 @@ use dom::bindings::js::JSRef;
 use dom::keyboardevent::KeyboardEvent;
 use servo_util::str::DOMString;
 
+use std::borrow::ToOwned;
 use std::cmp::{min, max};
 use std::default::Default;
 use std::num::SignedInt;
@@ -106,7 +107,7 @@ impl TextInput {
                 -1
             }, Selection::Selected);
         }
-        self.replace_selection("".into_string());
+        self.replace_selection("".to_owned());
     }
 
     /// Insert a character at the current editing point
@@ -139,12 +140,12 @@ impl TextInput {
             let lines_suffix = self.lines.slice(end.line + 1, self.lines.len());
 
             let mut insert_lines = if self.multiline {
-                insert.as_slice().split('\n').map(|s| s.into_string()).collect()
+                insert.as_slice().split('\n').map(|s| s.to_owned()).collect()
             } else {
                 vec!(insert)
             };
 
-            let mut new_line = prefix.into_string();
+            let mut new_line = prefix.to_owned();
             new_line.push_str(insert_lines[0].as_slice());
             insert_lines[0] = new_line;
 
@@ -338,7 +339,7 @@ impl TextInput {
 
     /// Get the current contents of the text input. Multiple lines are joined by \n.
     pub fn get_content(&self) -> DOMString {
-        let mut content = "".into_string();
+        let mut content = "".to_owned();
         for (i, line) in self.lines.iter().enumerate() {
             content.push_str(line.as_slice());
             if i < self.lines.len() - 1 {
@@ -352,7 +353,7 @@ impl TextInput {
     /// any \n encountered will be stripped and force a new logical line.
     pub fn set_content(&mut self, content: DOMString) {
         self.lines = if self.multiline {
-            content.as_slice().split('\n').map(|s| s.into_string()).collect()
+            content.as_slice().split('\n').map(|s| s.to_owned()).collect()
         } else {
             vec!(content)
         };
@@ -363,7 +364,7 @@ impl TextInput {
 
 #[test]
 fn test_textinput_delete_char() {
-    let mut textinput = TextInput::new(Lines::Single, "abcdefg".into_string());
+    let mut textinput = TextInput::new(Lines::Single, "abcdefg".to_owned());
     textinput.adjust_horizontal(2, Selection::NotSelected);
     textinput.delete_char(DeleteDir::Backward);
     assert_eq!(textinput.get_content().as_slice(), "acdefg");
@@ -378,7 +379,7 @@ fn test_textinput_delete_char() {
 
 #[test]
 fn test_textinput_insert_char() {
-    let mut textinput = TextInput::new(Lines::Single, "abcdefg".into_string());
+    let mut textinput = TextInput::new(Lines::Single, "abcdefg".to_owned());
     textinput.adjust_horizontal(2, Selection::NotSelected);
     textinput.insert_char('a');
     assert_eq!(textinput.get_content().as_slice(), "abacdefg");
@@ -390,7 +391,7 @@ fn test_textinput_insert_char() {
 
 #[test]
 fn test_textinput_get_sorted_selection() {
-    let mut textinput = TextInput::new(Lines::Single, "abcdefg".into_string());
+    let mut textinput = TextInput::new(Lines::Single, "abcdefg".to_owned());
     textinput.adjust_horizontal(2, Selection::NotSelected);
     textinput.adjust_horizontal(2, Selection::Selected);
     let (begin, end) = textinput.get_sorted_selection();
@@ -407,17 +408,17 @@ fn test_textinput_get_sorted_selection() {
 
 #[test]
 fn test_textinput_replace_selection() {
-    let mut textinput = TextInput::new(Lines::Single, "abcdefg".into_string());
+    let mut textinput = TextInput::new(Lines::Single, "abcdefg".to_owned());
     textinput.adjust_horizontal(2, Selection::NotSelected);
     textinput.adjust_horizontal(2, Selection::Selected);
 
-    textinput.replace_selection("xyz".into_string());
+    textinput.replace_selection("xyz".to_owned());
     assert_eq!(textinput.get_content().as_slice(), "abxyzefg");
 }
 
 #[test]
 fn test_textinput_current_line_length() {
-    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".into_string());
+    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".to_owned());
     assert_eq!(textinput.current_line_length(), 3);
 
     textinput.adjust_vertical(1, Selection::NotSelected);
@@ -429,7 +430,7 @@ fn test_textinput_current_line_length() {
 
 #[test]
 fn test_textinput_adjust_vertical() {
-    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".into_string());
+    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".to_owned());
     textinput.adjust_horizontal(3, Selection::NotSelected);
     textinput.adjust_vertical(1, Selection::NotSelected);
     assert_eq!(textinput.edit_point.line, 1);
@@ -446,7 +447,7 @@ fn test_textinput_adjust_vertical() {
 
 #[test]
 fn test_textinput_adjust_horizontal() {
-    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".into_string());
+    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".to_owned());
     textinput.adjust_horizontal(4, Selection::NotSelected);
     assert_eq!(textinput.edit_point.line, 1);
     assert_eq!(textinput.edit_point.index, 0);
@@ -466,12 +467,12 @@ fn test_textinput_adjust_horizontal() {
 
 #[test]
 fn test_textinput_handle_return() {
-    let mut single_line_textinput = TextInput::new(Lines::Single, "abcdef".into_string());
+    let mut single_line_textinput = TextInput::new(Lines::Single, "abcdef".to_owned());
     single_line_textinput.adjust_horizontal(3, Selection::NotSelected);
     single_line_textinput.handle_return();
     assert_eq!(single_line_textinput.get_content().as_slice(), "abcdef");
 
-    let mut multi_line_textinput = TextInput::new(Lines::Multiple, "abcdef".into_string());
+    let mut multi_line_textinput = TextInput::new(Lines::Multiple, "abcdef".to_owned());
     multi_line_textinput.adjust_horizontal(3, Selection::NotSelected);
     multi_line_textinput.handle_return();
     assert_eq!(multi_line_textinput.get_content().as_slice(), "abc\ndef");
@@ -479,7 +480,7 @@ fn test_textinput_handle_return() {
 
 #[test]
 fn test_textinput_select_all() {
-    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".into_string());
+    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".to_owned());
     assert_eq!(textinput.edit_point.line, 0);
     assert_eq!(textinput.edit_point.index, 0);
 
@@ -490,19 +491,19 @@ fn test_textinput_select_all() {
 
 #[test]
 fn test_textinput_get_content() {
-    let single_line_textinput = TextInput::new(Lines::Single, "abcdefg".into_string());
+    let single_line_textinput = TextInput::new(Lines::Single, "abcdefg".to_owned());
     assert_eq!(single_line_textinput.get_content().as_slice(), "abcdefg");
 
-    let multi_line_textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".into_string());
+    let multi_line_textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".to_owned());
     assert_eq!(multi_line_textinput.get_content().as_slice(), "abc\nde\nf");
 }
 
 #[test]
 fn test_textinput_set_content() {
-    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".into_string());
+    let mut textinput = TextInput::new(Lines::Multiple, "abc\nde\nf".to_owned());
     assert_eq!(textinput.get_content().as_slice(), "abc\nde\nf");
 
-    textinput.set_content("abc\nf".into_string());
+    textinput.set_content("abc\nf".to_owned());
     assert_eq!(textinput.get_content().as_slice(), "abc\nf");
 
     assert_eq!(textinput.edit_point.line, 0);
@@ -510,7 +511,7 @@ fn test_textinput_set_content() {
     textinput.adjust_horizontal(3, Selection::Selected);
     assert_eq!(textinput.edit_point.line, 0);
     assert_eq!(textinput.edit_point.index, 3);
-    textinput.set_content("de".into_string());
+    textinput.set_content("de".to_owned());
     assert_eq!(textinput.get_content().as_slice(), "de");
     assert_eq!(textinput.edit_point.line, 0);
     assert_eq!(textinput.edit_point.index, 2);
diff --git a/components/servo/main.rs b/components/servo/main.rs
index 81723d64b04..afa1281d16b 100644
--- a/components/servo/main.rs
+++ b/components/servo/main.rs
@@ -41,6 +41,9 @@ use servo::Browser;
 #[cfg(not(test))]
 use compositing::windowing::WindowEvent;
 
+#[cfg(target_os="android")]
+use std::borrow::ToOwned;
+
 #[cfg(not(any(test,target_os="android")))]
 use std::os;
 
@@ -55,8 +58,8 @@ android_start!(main)
 #[cfg(target_os="android")]
 fn get_args() -> Vec<String> {
     vec![
-        "servo".into_string(),
-        "http://en.wikipedia.org/wiki/Rust".into_string()
+        "servo".to_owned(),
+        "http://en.wikipedia.org/wiki/Rust".to_owned()
     ]
 }
 
diff --git a/components/style/media_queries.rs b/components/style/media_queries.rs
index cf9facf8dcf..0c504a5dcb3 100644
--- a/components/style/media_queries.rs
+++ b/components/style/media_queries.rs
@@ -328,6 +328,7 @@ mod tests {
     use selector_matching::StylesheetOrigin;
     use super::*;
     use url::Url;
+    use std::borrow::ToOwned;
 
     fn test_media_rule(css: &str, callback: |&MediaQueryList, &str|) {
         let url = Url::parse("http://localhost").unwrap();
@@ -346,152 +347,152 @@ mod tests {
         let ss = Stylesheet::from_str(css, url, StylesheetOrigin::Author);
         let mut rule_count: int = 0;
         iter_stylesheet_style_rules(&ss, device, |_| rule_count += 1);
-        assert!(rule_count == expected_rule_count, css.into_string());
+        assert!(rule_count == expected_rule_count, css.to_owned());
     }
 
     #[test]
     fn test_mq_empty() {
         test_media_rule("@media { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
     }
 
     #[test]
     fn test_mq_screen() {
         test_media_rule("@media screen { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media only screen { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Only), css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Only), css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media not screen { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
     }
 
     #[test]
     fn test_mq_print() {
         test_media_rule("@media print { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Print), css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Print), css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media only print { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Only), css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Print), css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Only), css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Print), css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media not print { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Print), css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Print), css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
     }
 
     #[test]
     fn test_mq_unknown() {
         test_media_rule("@media fridge { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media only glass { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Only), css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Only), css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media not wood { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
     }
 
     #[test]
     fn test_mq_all() {
         test_media_rule("@media all { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media only all { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Only), css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Only), css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media not all { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
     }
 
     #[test]
     fn test_mq_or() {
         test_media_rule("@media screen, print { }", |list, css| {
-            assert!(list.media_queries.len() == 2, css.into_string());
+            assert!(list.media_queries.len() == 2, css.to_owned());
             let q0 = &list.media_queries[0];
-            assert!(q0.qualifier == None, css.into_string());
-            assert!(q0.media_type == MediaQueryType::MediaType(MediaType::Screen), css.into_string());
-            assert!(q0.expressions.len() == 0, css.into_string());
+            assert!(q0.qualifier == None, css.to_owned());
+            assert!(q0.media_type == MediaQueryType::MediaType(MediaType::Screen), css.to_owned());
+            assert!(q0.expressions.len() == 0, css.to_owned());
 
             let q1 = &list.media_queries[1];
-            assert!(q1.qualifier == None, css.into_string());
-            assert!(q1.media_type == MediaQueryType::MediaType(MediaType::Print), css.into_string());
-            assert!(q1.expressions.len() == 0, css.into_string());
+            assert!(q1.qualifier == None, css.to_owned());
+            assert!(q1.media_type == MediaQueryType::MediaType(MediaType::Print), css.to_owned());
+            assert!(q1.expressions.len() == 0, css.to_owned());
         });
     }
 
     #[test]
     fn test_mq_default_expressions() {
         test_media_rule("@media (min-width: 100px) { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 1, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 1, css.to_owned());
             match q.expressions[0] {
                 Expression::Width(Range::Min(w)) => assert!(w == Au::from_px(100)),
                 _ => panic!("wrong expression type"),
@@ -499,11 +500,11 @@ mod tests {
         });
 
         test_media_rule("@media (max-width: 43px) { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 1, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 1, css.to_owned());
             match q.expressions[0] {
                 Expression::Width(Range::Max(w)) => assert!(w == Au::from_px(43)),
                 _ => panic!("wrong expression type"),
@@ -514,11 +515,11 @@ mod tests {
     #[test]
     fn test_mq_expressions() {
         test_media_rule("@media screen and (min-width: 100px) { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.into_string());
-            assert!(q.expressions.len() == 1, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.to_owned());
+            assert!(q.expressions.len() == 1, css.to_owned());
             match q.expressions[0] {
                 Expression::Width(Range::Min(w)) => assert!(w == Au::from_px(100)),
                 _ => panic!("wrong expression type"),
@@ -526,11 +527,11 @@ mod tests {
         });
 
         test_media_rule("@media print and (max-width: 43px) { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Print), css.into_string());
-            assert!(q.expressions.len() == 1, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Print), css.to_owned());
+            assert!(q.expressions.len() == 1, css.to_owned());
             match q.expressions[0] {
                 Expression::Width(Range::Max(w)) => assert!(w == Au::from_px(43)),
                 _ => panic!("wrong expression type"),
@@ -538,11 +539,11 @@ mod tests {
         });
 
         test_media_rule("@media fridge and (max-width: 52px) { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.into_string());
-            assert!(q.expressions.len() == 1, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.to_owned());
+            assert!(q.expressions.len() == 1, css.to_owned());
             match q.expressions[0] {
                 Expression::Width(Range::Max(w)) => assert!(w == Au::from_px(52)),
                 _ => panic!("wrong expression type"),
@@ -553,11 +554,11 @@ mod tests {
     #[test]
     fn test_mq_multiple_expressions() {
         test_media_rule("@media (min-width: 100px) and (max-width: 200px) { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == None, css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 2, css.into_string());
+            assert!(q.qualifier == None, css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 2, css.to_owned());
             match q.expressions[0] {
                 Expression::Width(Range::Min(w)) => assert!(w == Au::from_px(100)),
                 _ => panic!("wrong expression type"),
@@ -569,11 +570,11 @@ mod tests {
         });
 
         test_media_rule("@media not screen and (min-width: 100px) and (max-width: 200px) { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.into_string());
-            assert!(q.expressions.len() == 2, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::MediaType(MediaType::Screen), css.to_owned());
+            assert!(q.expressions.len() == 2, css.to_owned());
             match q.expressions[0] {
                 Expression::Width(Range::Min(w)) => assert!(w == Au::from_px(100)),
                 _ => panic!("wrong expression type"),
@@ -588,75 +589,75 @@ mod tests {
     #[test]
     fn test_mq_malformed_expressions() {
         test_media_rule("@media (min-width: 100blah) and (max-width: 200px) { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media screen and (height: 200px) { }", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media (min-width: 30em foo bar) {}", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media not {}", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media not (min-width: 300px) {}", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media , {}", |list, css| {
-            assert!(list.media_queries.len() == 1, css.into_string());
+            assert!(list.media_queries.len() == 1, css.to_owned());
             let q = &list.media_queries[0];
-            assert!(q.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q.media_type == MediaQueryType::All, css.into_string());
-            assert!(q.expressions.len() == 0, css.into_string());
+            assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media screen 4px, print {}", |list, css| {
-            assert!(list.media_queries.len() == 2, css.into_string());
+            assert!(list.media_queries.len() == 2, css.to_owned());
             let q0 = &list.media_queries[0];
-            assert!(q0.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q0.media_type == MediaQueryType::All, css.into_string());
-            assert!(q0.expressions.len() == 0, css.into_string());
+            assert!(q0.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q0.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q0.expressions.len() == 0, css.to_owned());
             let q1 = &list.media_queries[1];
-            assert!(q1.qualifier == None, css.into_string());
-            assert!(q1.media_type == MediaQueryType::MediaType(MediaType::Print), css.into_string());
-            assert!(q1.expressions.len() == 0, css.into_string());
+            assert!(q1.qualifier == None, css.to_owned());
+            assert!(q1.media_type == MediaQueryType::MediaType(MediaType::Print), css.to_owned());
+            assert!(q1.expressions.len() == 0, css.to_owned());
         });
 
         test_media_rule("@media screen, {}", |list, css| {
-            assert!(list.media_queries.len() == 2, css.into_string());
+            assert!(list.media_queries.len() == 2, css.to_owned());
             let q0 = &list.media_queries[0];
-            assert!(q0.qualifier == None, css.into_string());
-            assert!(q0.media_type == MediaQueryType::MediaType(MediaType::Screen), css.into_string());
-            assert!(q0.expressions.len() == 0, css.into_string());
+            assert!(q0.qualifier == None, css.to_owned());
+            assert!(q0.media_type == MediaQueryType::MediaType(MediaType::Screen), css.to_owned());
+            assert!(q0.expressions.len() == 0, css.to_owned());
             let q1 = &list.media_queries[1];
-            assert!(q1.qualifier == Some(Qualifier::Not), css.into_string());
-            assert!(q1.media_type == MediaQueryType::All, css.into_string());
-            assert!(q1.expressions.len() == 0, css.into_string());
+            assert!(q1.qualifier == Some(Qualifier::Not), css.to_owned());
+            assert!(q1.media_type == MediaQueryType::All, css.to_owned());
+            assert!(q1.expressions.len() == 0, css.to_owned());
         });
     }
 
diff --git a/components/style/properties/mod.rs.mako b/components/style/properties/mod.rs.mako
index 5f800fd07e3..9f26568c89d 100644
--- a/components/style/properties/mod.rs.mako
+++ b/components/style/properties/mod.rs.mako
@@ -5,6 +5,7 @@
 // This file is a Mako template: http://www.makotemplates.org/
 
 pub use std::ascii::AsciiExt;
+use std::borrow::ToOwned;
 use std::fmt;
 use std::fmt::Show;
 use std::sync::Arc;
@@ -1025,6 +1026,7 @@ pub mod longhands {
 
     <%self:longhand name="font-family">
         pub use super::computed_as_specified as to_computed_value;
+        use std::borrow::ToOwned;
         pub mod computed_value {
             use std::fmt;
             #[deriving(PartialEq, Eq, Clone)]
@@ -1065,7 +1067,7 @@ pub mod longhands {
 
         #[inline]
         pub fn get_initial_value() -> computed_value::T {
-            vec![FontFamily::FamilyName("serif".into_string())]
+            vec![FontFamily::FamilyName("serif".to_owned())]
         }
         /// <familiy-name>#
         /// <familiy-name> = <string> | [ <ident>+ ]
@@ -2647,7 +2649,7 @@ impl<T: Show> DeclaredValue<T> {
         match self {
             &DeclaredValue::SpecifiedValue(ref inner) => Some(format!("{}", inner)),
             &DeclaredValue::Initial => None,
-            &DeclaredValue::Inherit => Some("inherit".into_string()),
+            &DeclaredValue::Inherit => Some("inherit".to_owned()),
         }
     }
 }
@@ -2673,10 +2675,10 @@ impl PropertyDeclaration {
         match self {
             % for property in LONGHANDS:
                 % if property.derived_from is None:
-                    &PropertyDeclaration::${property.camel_case}Declaration(..) => "${property.name}".into_string(),
+                    &PropertyDeclaration::${property.camel_case}Declaration(..) => "${property.name}".to_owned(),
                 % endif
             % endfor
-            _ => "".into_string(),
+            _ => "".to_owned(),
         }
     }
 
@@ -3391,7 +3393,7 @@ pub fn longhands_from_shorthand(shorthand: &str) -> Option<Vec<String>> {
         % for property in SHORTHANDS:
             "${property.name}" => Some(vec!(
             % for sub in property.sub_properties:
-                "${sub.name}".into_string(),
+                "${sub.name}".to_owned(),
             % endfor
             )),
         % endfor
diff --git a/components/util/opts.rs b/components/util/opts.rs
index 8ee877bd9fd..150c386aa23 100644
--- a/components/util/opts.rs
+++ b/components/util/opts.rs
@@ -11,6 +11,7 @@ use geom::scale_factor::ScaleFactor;
 use geom::size::TypedSize2D;
 use layers::geometry::DevicePixel;
 use getopts;
+use std::borrow::ToOwned;
 use std::collections::HashSet;
 use std::cmp;
 use std::io;
@@ -302,7 +303,7 @@ pub fn from_cmdline_args(args: &[String]) -> bool {
         }
     };
 
-    let render_api = match opt_match.opt_str("r").unwrap_or("gl".into_string()).as_slice() {
+    let render_api = match opt_match.opt_str("r").unwrap_or("gl".to_owned()).as_slice() {
         "mesa" => RenderApi::Mesa,
         "gl" => RenderApi::OpenGL,
         _ => {
diff --git a/components/util/rtinstrument.rs b/components/util/rtinstrument.rs
index ea9a5ecef32..2c3fca6bd3c 100644
--- a/components/util/rtinstrument.rs
+++ b/components/util/rtinstrument.rs
@@ -4,6 +4,7 @@
 
 use opts;
 use std::any::Any;
+use std::borrow::ToOwned;
 #[cfg(not(test))]
 use std::io::File;
 //use std::mem;
@@ -83,7 +84,7 @@ pub fn instrument(f: proc()) {
             let task = Local::borrow(None::<Task>);
             match task.name {
                 Some(ref name) => name.to_string(),
-                None => "unknown".into_string(),
+                None => "unknown".to_owned(),
             }
         };
         let stats = TaskStats {
diff --git a/components/util/smallvec.rs b/components/util/smallvec.rs
index e92d3d3eeba..2153398d3c3 100644
--- a/components/util/smallvec.rs
+++ b/components/util/smallvec.rs
@@ -523,55 +523,56 @@ def_small_vector_clone_impl!(SmallVec32)
 #[cfg(test)]
 pub mod tests {
     use smallvec::{SmallVec, SmallVec2, SmallVec16};
+    use std::borrow::ToOwned;
 
     // We heap allocate all these strings so that double frees will show up under valgrind.
 
     #[test]
     pub fn test_inline() {
         let mut v = SmallVec16::new();
-        v.push("hello".into_string());
-        v.push("there".into_string());
+        v.push("hello".to_owned());
+        v.push("there".to_owned());
         assert_eq!(v.as_slice(), vec![
-            "hello".into_string(),
-            "there".into_string(),
+            "hello".to_owned(),
+            "there".to_owned(),
         ].as_slice());
     }
 
     #[test]
     pub fn test_spill() {
         let mut v = SmallVec2::new();
-        v.push("hello".into_string());
-        v.push("there".into_string());
-        v.push("burma".into_string());
-        v.push("shave".into_string());
+        v.push("hello".to_owned());
+        v.push("there".to_owned());
+        v.push("burma".to_owned());
+        v.push("shave".to_owned());
         assert_eq!(v.as_slice(), vec![
-            "hello".into_string(),
-            "there".into_string(),
-            "burma".into_string(),
-            "shave".into_string(),
+            "hello".to_owned(),
+            "there".to_owned(),
+            "burma".to_owned(),
+            "shave".to_owned(),
         ].as_slice());
     }
 
     #[test]
     pub fn test_double_spill() {
         let mut v = SmallVec2::new();
-        v.push("hello".into_string());
-        v.push("there".into_string());
-        v.push("burma".into_string());
-        v.push("shave".into_string());
-        v.push("hello".into_string());
-        v.push("there".into_string());
-        v.push("burma".into_string());
-        v.push("shave".into_string());
+        v.push("hello".to_owned());
+        v.push("there".to_owned());
+        v.push("burma".to_owned());
+        v.push("shave".to_owned());
+        v.push("hello".to_owned());
+        v.push("there".to_owned());
+        v.push("burma".to_owned());
+        v.push("shave".to_owned());
         assert_eq!(v.as_slice(), vec![
-            "hello".into_string(),
-            "there".into_string(),
-            "burma".into_string(),
-            "shave".into_string(),
-            "hello".into_string(),
-            "there".into_string(),
-            "burma".into_string(),
-            "shave".into_string(),
+            "hello".to_owned(),
+            "there".to_owned(),
+            "burma".to_owned(),
+            "shave".to_owned(),
+            "hello".to_owned(),
+            "there".to_owned(),
+            "burma".to_owned(),
+            "shave".to_owned(),
         ].as_slice());
     }
 }
diff --git a/components/util/str.rs b/components/util/str.rs
index 4cf5a5cc3f4..db5a6328cdb 100644
--- a/components/util/str.rs
+++ b/components/util/str.rs
@@ -6,6 +6,7 @@ use geometry::Au;
 
 use cssparser::{mod, RGBA, Color};
 use std::ascii::AsciiExt;
+use std::borrow::ToOwned;
 use std::iter::Filter;
 use std::num::Int;
 use std::str::{CharEq, CharSplits, FromStr};
@@ -16,11 +17,11 @@ pub type StaticCharVec = &'static [char];
 pub type StaticStringVec = &'static [&'static str];
 
 pub fn null_str_as_empty(s: &Option<DOMString>) -> DOMString {
-    // We don't use map_default because it would allocate "".into_string() even
+    // We don't use map_default because it would allocate "".to_owned() even
     // for Some.
     match *s {
         Some(ref s) => s.clone(),
-        None => "".into_string()
+        None => "".to_owned()
     }
 }
 
diff --git a/components/util/task.rs b/components/util/task.rs
index 2d07be08da3..c6dc3547fb4 100644
--- a/components/util/task.rs
+++ b/components/util/task.rs
@@ -2,6 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+use std::borrow::ToOwned;
 use std::task;
 use std::comm::Sender;
 use std::task::TaskBuilder;
@@ -29,7 +30,7 @@ pub fn spawn_named_with_send_on_failure<T: Send>(name: &'static str,
         f();
     });
 
-    let watched_name = name.into_string();
+    let watched_name = name.to_owned();
     let watcher_name = format!("{}Watcher", watched_name);
     TaskBuilder::new().named(watcher_name).spawn(proc() {
         //rtinstrument::instrument(proc() {
diff --git a/ports/cef/browser.rs b/ports/cef/browser.rs
index 968d6a320db..9a6aa48a35d 100644
--- a/ports/cef/browser.rs
+++ b/ports/cef/browser.rs
@@ -16,6 +16,7 @@ use compositing::windowing::{WindowNavigateMsg, WindowEvent};
 use glutin_app;
 use libc::c_int;
 use servo_util::opts;
+use std::borrow::ToOwned;
 use std::cell::{Cell, RefCell};
 use std::sync::atomic::{AtomicInt, SeqCst};
 
@@ -204,7 +205,7 @@ fn browser_host_create(window_info: &cef_window_info_t,
                        callback_executed: bool)
                        -> CefBrowser {
     let mut urls = Vec::new();
-    urls.push("http://s27.postimg.org/vqbtrolyr/servo.jpg".into_string());
+    urls.push("http://s27.postimg.org/vqbtrolyr/servo.jpg".to_owned());
     let mut opts = opts::default_opts();
     opts.urls = urls;
     let browser = ServoCefBrowser::new(window_info, client).as_cef_interface();
diff --git a/ports/cef/core.rs b/ports/cef/core.rs
index 07520930c8b..5a99d9d217c 100644
--- a/ports/cef/core.rs
+++ b/ports/cef/core.rs
@@ -12,6 +12,7 @@ use rustrt::local::Local;
 use rustrt::task;
 use servo_util::opts;
 use servo_util::opts::RenderApi;
+use std::borrow::ToOwned;
 use std::c_str::CString;
 use std::rt;
 use browser;
@@ -31,7 +32,7 @@ static CEF_API_HASH_PLATFORM: &'static [u8] = b"2bc564c3871965ef3a2531b528bda3e1
 
 #[cfg(target_os="linux")]
 fn resources_path() -> Option<String> {
-    Some("../../servo/resources".into_string())
+    Some("../../servo/resources".to_owned())
 }
 
 #[cfg(not(target_os="linux"))]
@@ -70,7 +71,7 @@ pub extern "C" fn cef_initialize(args: *const cef_main_args_t,
 
     create_rust_task();
 
-    let urls = vec![HOME_URL.into_string()];
+    let urls = vec![HOME_URL.to_owned()];
     opts::set_opts(opts::Opts {
         urls: urls,
         n_paint_threads: 1,