Replace all ~"" with "".to_owned().

70 files changed, 280 insertions, 280 deletions

diff --git a/src/components/script/dom/bindings/conversions.rs b/src/components/script/dom/bindings/conversions.rs
index 02d6983cf3b..bcbf088ef41 100644
--- a/src/components/script/dom/bindings/conversions.rs
+++ b/src/components/script/dom/bindings/conversions.rs
@@ -243,7 +243,7 @@ impl Default for StringificationBehavior {
 impl FromJSValConvertible<StringificationBehavior> for DOMString {
     fn from_jsval(cx: *JSContext, value: JSVal, nullBehavior: StringificationBehavior) -> Result<DOMString, ()> {
         if nullBehavior == Empty && value.is_null() {
-            Ok(~"")
+            Ok("".to_owned())
         } else {
             let jsstr = unsafe { JS_ValueToString(cx, value) };
             if jsstr.is_null() {
diff --git a/src/components/script/dom/blob.rs b/src/components/script/dom/blob.rs
index ff5958478b6..f4f22a26873 100644
--- a/src/components/script/dom/blob.rs
+++ b/src/components/script/dom/blob.rs
@@ -47,7 +47,7 @@ impl<'a> BlobMethods for JSRef<'a, Blob> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn Slice(&self, _start: Option<i64>, _end: Option<i64>, _contentType: Option<DOMString>) -> Temporary<Blob> {
diff --git a/src/components/script/dom/characterdata.rs b/src/components/script/dom/characterdata.rs
index 2a41e1fee3b..9853e00ae25 100644
--- a/src/components/script/dom/characterdata.rs
+++ b/src/components/script/dom/characterdata.rs
@@ -78,7 +78,7 @@ impl<'a> CharacterDataMethods for JSRef<'a, CharacterData> {
     }
 
     fn DeleteData(&mut self, offset: u32, count: u32) -> ErrorResult {
-        self.ReplaceData(offset, count, ~"")
+        self.ReplaceData(offset, count, "".to_owned())
     }
 
     fn ReplaceData(&mut self, offset: u32, count: u32, arg: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/document.rs b/src/components/script/dom/document.rs
index d911611eba3..247a3bbf179 100644
--- a/src/components/script/dom/document.rs
+++ b/src/components/script/dom/document.rs
@@ -544,7 +544,7 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
 
     // http://www.whatwg.org/specs/web-apps/current-work/#document.title
     fn Title(&self) -> DOMString {
-        let mut title = ~"";
+        let mut title = "".to_owned();
         self.GetDocumentElement().root().map(|root| {
             let root: &JSRef<Node> = NodeCast::from_ref(&*root);
             root.traverse_preorder()
diff --git a/src/components/script/dom/documenttype.rs b/src/components/script/dom/documenttype.rs
index 31312bd40f1..0bbb819ca89 100644
--- a/src/components/script/dom/documenttype.rs
+++ b/src/components/script/dom/documenttype.rs
@@ -37,8 +37,8 @@ impl DocumentType {
         DocumentType {
             node: Node::new_inherited(DoctypeNodeTypeId, document),
             name: name,
-            public_id: public_id.unwrap_or(~""),
-            system_id: system_id.unwrap_or(~"")
+            public_id: public_id.unwrap_or("".to_owned()),
+            system_id: system_id.unwrap_or("".to_owned())
         }
     }
 
diff --git a/src/components/script/dom/element.rs b/src/components/script/dom/element.rs
index 751251584a7..8043f88ed05 100644
--- a/src/components/script/dom/element.rs
+++ b/src/components/script/dom/element.rs
@@ -350,7 +350,7 @@ impl<'a> AttributeHandlers for JSRef<'a, Element> {
                 let x = x.root();
                 x.deref().Value()
             }
-            None => ~""
+            None => "".to_owned()
         }
     }
     fn set_string_attribute(&mut self, name: &str, value: DOMString) {
diff --git a/src/components/script/dom/event.rs b/src/components/script/dom/event.rs
index 260cf319201..95fc7de3430 100644
--- a/src/components/script/dom/event.rs
+++ b/src/components/script/dom/event.rs
@@ -67,7 +67,7 @@ impl Event {
             current_target: None,
             target: None,
             phase: PhaseNone,
-            type_: ~"",
+            type_: "".to_owned(),
             canceled: false,
             cancelable: true,
             bubbles: false,
diff --git a/src/components/script/dom/htmlanchorelement.rs b/src/components/script/dom/htmlanchorelement.rs
index 6b90e96053a..69fda3aa73d 100644
--- a/src/components/script/dom/htmlanchorelement.rs
+++ b/src/components/script/dom/htmlanchorelement.rs
@@ -71,7 +71,7 @@ pub trait HTMLAnchorElementMethods {
 
 impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     fn Href(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHref(&mut self, _href: DOMString) -> ErrorResult {
@@ -79,7 +79,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Target(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetTarget(&self, _target: DOMString) -> ErrorResult {
@@ -87,7 +87,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Download(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetDownload(&self, _download: DOMString) -> ErrorResult {
@@ -95,7 +95,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Ping(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPing(&self, _ping: DOMString) -> ErrorResult {
@@ -103,7 +103,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Rel(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetRel(&self, _rel: DOMString) -> ErrorResult {
@@ -111,7 +111,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Hreflang(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHreflang(&self, _href_lang: DOMString) -> ErrorResult {
@@ -119,7 +119,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
@@ -127,7 +127,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Text(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetText(&mut self, _text: DOMString) -> ErrorResult {
@@ -135,7 +135,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Coords(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCoords(&mut self, _coords: DOMString) -> ErrorResult {
@@ -143,7 +143,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Charset(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCharset(&mut self, _charset: DOMString) -> ErrorResult {
@@ -151,7 +151,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -159,7 +159,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Rev(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetRev(&mut self, _rev: DOMString) -> ErrorResult {
@@ -167,7 +167,7 @@ impl<'a> HTMLAnchorElementMethods for JSRef<'a, HTMLAnchorElement> {
     }
 
     fn Shape(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetShape(&mut self, _shape: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlappletelement.rs b/src/components/script/dom/htmlappletelement.rs
index 385750d0a16..178a644e96c 100644
--- a/src/components/script/dom/htmlappletelement.rs
+++ b/src/components/script/dom/htmlappletelement.rs
@@ -67,7 +67,7 @@ pub trait HTMLAppletElementMethods {
 
 impl<'a> HTMLAppletElementMethods for JSRef<'a, HTMLAppletElement> {
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
@@ -75,7 +75,7 @@ impl<'a> HTMLAppletElementMethods for JSRef<'a, HTMLAppletElement> {
     }
 
     fn Alt(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlt(&self, _alt: DOMString) -> ErrorResult {
@@ -83,7 +83,7 @@ impl<'a> HTMLAppletElementMethods for JSRef<'a, HTMLAppletElement> {
     }
 
     fn Archive(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetArchive(&self, _archive: DOMString) -> ErrorResult {
@@ -91,7 +91,7 @@ impl<'a> HTMLAppletElementMethods for JSRef<'a, HTMLAppletElement> {
     }
 
     fn Code(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCode(&self, _code: DOMString) -> ErrorResult {
@@ -99,7 +99,7 @@ impl<'a> HTMLAppletElementMethods for JSRef<'a, HTMLAppletElement> {
     }
 
     fn CodeBase(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCodeBase(&self, _code_base: DOMString) -> ErrorResult {
@@ -107,7 +107,7 @@ impl<'a> HTMLAppletElementMethods for JSRef<'a, HTMLAppletElement> {
     }
 
     fn Height(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHeight(&self, _height: DOMString) -> ErrorResult {
@@ -123,7 +123,7 @@ impl<'a> HTMLAppletElementMethods for JSRef<'a, HTMLAppletElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -131,7 +131,7 @@ impl<'a> HTMLAppletElementMethods for JSRef<'a, HTMLAppletElement> {
     }
 
     fn Object(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetObject(&mut self, _object: DOMString) -> ErrorResult {
@@ -147,7 +147,7 @@ impl<'a> HTMLAppletElementMethods for JSRef<'a, HTMLAppletElement> {
     }
 
     fn Width(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetWidth(&mut self, _width: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlareaelement.rs b/src/components/script/dom/htmlareaelement.rs
index e09549b7a5e..c6fd8420fbf 100644
--- a/src/components/script/dom/htmlareaelement.rs
+++ b/src/components/script/dom/htmlareaelement.rs
@@ -61,7 +61,7 @@ pub trait HTMLAreaElementMethods {
 
 impl<'a> HTMLAreaElementMethods for JSRef<'a, HTMLAreaElement> {
     fn Alt(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlt(&self, _alt: DOMString) -> ErrorResult {
@@ -69,7 +69,7 @@ impl<'a> HTMLAreaElementMethods for JSRef<'a, HTMLAreaElement> {
     }
 
     fn Coords(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCoords(&self, _coords: DOMString) -> ErrorResult {
@@ -77,7 +77,7 @@ impl<'a> HTMLAreaElementMethods for JSRef<'a, HTMLAreaElement> {
     }
 
     fn Shape(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetShape(&self, _shape: DOMString) -> ErrorResult {
@@ -85,7 +85,7 @@ impl<'a> HTMLAreaElementMethods for JSRef<'a, HTMLAreaElement> {
     }
 
     fn Href(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHref(&self, _href: DOMString) -> ErrorResult {
@@ -93,7 +93,7 @@ impl<'a> HTMLAreaElementMethods for JSRef<'a, HTMLAreaElement> {
     }
 
     fn Target(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetTarget(&self, _target: DOMString) -> ErrorResult {
@@ -101,7 +101,7 @@ impl<'a> HTMLAreaElementMethods for JSRef<'a, HTMLAreaElement> {
     }
 
     fn Download(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetDownload(&self, _download: DOMString) -> ErrorResult {
@@ -109,7 +109,7 @@ impl<'a> HTMLAreaElementMethods for JSRef<'a, HTMLAreaElement> {
     }
 
     fn Ping(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPing(&self, _ping: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlbaseelement.rs b/src/components/script/dom/htmlbaseelement.rs
index 1c75cd786bb..3986e5c9beb 100644
--- a/src/components/script/dom/htmlbaseelement.rs
+++ b/src/components/script/dom/htmlbaseelement.rs
@@ -49,7 +49,7 @@ pub trait HTMLBaseElementMethods {
 
 impl<'a> HTMLBaseElementMethods for JSRef<'a, HTMLBaseElement> {
     fn Href(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHref(&self, _href: DOMString) -> ErrorResult {
@@ -57,7 +57,7 @@ impl<'a> HTMLBaseElementMethods for JSRef<'a, HTMLBaseElement> {
     }
 
     fn Target(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetTarget(&self, _target: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlbodyelement.rs b/src/components/script/dom/htmlbodyelement.rs
index 4c28b446524..3a4b9440ff4 100644
--- a/src/components/script/dom/htmlbodyelement.rs
+++ b/src/components/script/dom/htmlbodyelement.rs
@@ -57,7 +57,7 @@ pub trait HTMLBodyElementMethods {
 
 impl<'a> HTMLBodyElementMethods for JSRef<'a, HTMLBodyElement> {
     fn Text(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetText(&mut self, _text: DOMString) -> ErrorResult {
@@ -65,7 +65,7 @@ impl<'a> HTMLBodyElementMethods for JSRef<'a, HTMLBodyElement> {
     }
 
     fn Link(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetLink(&self, _link: DOMString) -> ErrorResult {
@@ -73,7 +73,7 @@ impl<'a> HTMLBodyElementMethods for JSRef<'a, HTMLBodyElement> {
     }
 
     fn VLink(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetVLink(&self, _v_link: DOMString) -> ErrorResult {
@@ -81,7 +81,7 @@ impl<'a> HTMLBodyElementMethods for JSRef<'a, HTMLBodyElement> {
     }
 
     fn ALink(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetALink(&self, _a_link: DOMString) -> ErrorResult {
@@ -89,7 +89,7 @@ impl<'a> HTMLBodyElementMethods for JSRef<'a, HTMLBodyElement> {
     }
 
     fn BgColor(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetBgColor(&self, _bg_color: DOMString) -> ErrorResult {
@@ -97,7 +97,7 @@ impl<'a> HTMLBodyElementMethods for JSRef<'a, HTMLBodyElement> {
     }
 
     fn Background(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetBackground(&self, _background: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlbrelement.rs b/src/components/script/dom/htmlbrelement.rs
index bb1e57a2370..9628e963397 100644
--- a/src/components/script/dom/htmlbrelement.rs
+++ b/src/components/script/dom/htmlbrelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLBRElementMethods {
 
 impl<'a> HTMLBRElementMethods for JSRef<'a, HTMLBRElement> {
     fn Clear(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetClear(&mut self, _text: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlbuttonelement.rs b/src/components/script/dom/htmlbuttonelement.rs
index 782e9a0c0c8..ebd7ad93191 100644
--- a/src/components/script/dom/htmlbuttonelement.rs
+++ b/src/components/script/dom/htmlbuttonelement.rs
@@ -95,7 +95,7 @@ impl<'a> HTMLButtonElementMethods for JSRef<'a, HTMLButtonElement> {
     }
 
     fn FormAction(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFormAction(&mut self, _formaction: DOMString) -> ErrorResult {
@@ -103,7 +103,7 @@ impl<'a> HTMLButtonElementMethods for JSRef<'a, HTMLButtonElement> {
     }
 
     fn FormEnctype(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFormEnctype(&mut self, _formenctype: DOMString) -> ErrorResult {
@@ -111,7 +111,7 @@ impl<'a> HTMLButtonElementMethods for JSRef<'a, HTMLButtonElement> {
     }
 
     fn FormMethod(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFormMethod(&mut self, _formmethod: DOMString) -> ErrorResult {
@@ -127,7 +127,7 @@ impl<'a> HTMLButtonElementMethods for JSRef<'a, HTMLButtonElement> {
     }
 
     fn FormTarget(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFormTarget(&mut self, _formtarget: DOMString) -> ErrorResult {
@@ -135,7 +135,7 @@ impl<'a> HTMLButtonElementMethods for JSRef<'a, HTMLButtonElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -143,7 +143,7 @@ impl<'a> HTMLButtonElementMethods for JSRef<'a, HTMLButtonElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
@@ -151,7 +151,7 @@ impl<'a> HTMLButtonElementMethods for JSRef<'a, HTMLButtonElement> {
     }
 
     fn Value(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValue(&mut self, _value: DOMString) -> ErrorResult {
@@ -171,7 +171,7 @@ impl<'a> HTMLButtonElementMethods for JSRef<'a, HTMLButtonElement> {
     }
 
     fn ValidationMessage(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValidationMessage(&mut self, _message: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmldataelement.rs b/src/components/script/dom/htmldataelement.rs
index 26090be7632..3f37c4564d3 100644
--- a/src/components/script/dom/htmldataelement.rs
+++ b/src/components/script/dom/htmldataelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLDataElementMethods {
 
 impl<'a> HTMLDataElementMethods for JSRef<'a, HTMLDataElement> {
     fn Value(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValue(&mut self, _value: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmldivelement.rs b/src/components/script/dom/htmldivelement.rs
index 5f49ce250ed..4c2fdfca531 100644
--- a/src/components/script/dom/htmldivelement.rs
+++ b/src/components/script/dom/htmldivelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLDivElementMethods {
 
 impl<'a> HTMLDivElementMethods for JSRef<'a, HTMLDivElement> {
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmldlistelement.rs b/src/components/script/dom/htmldlistelement.rs
index db57d180049..23ebc6d2c14 100644
--- a/src/components/script/dom/htmldlistelement.rs
+++ b/src/components/script/dom/htmldlistelement.rs
@@ -57,7 +57,7 @@ impl<'a> HTMLDListElementMethods for JSRef<'a, HTMLDListElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlelement.rs b/src/components/script/dom/htmlelement.rs
index 3443e62e51f..5355abcf732 100644
--- a/src/components/script/dom/htmlelement.rs
+++ b/src/components/script/dom/htmlelement.rs
@@ -80,21 +80,21 @@ pub trait HTMLElementMethods {
 
 impl<'a> HTMLElementMethods for JSRef<'a, HTMLElement> {
     fn Title(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetTitle(&mut self, _title: DOMString) {
     }
 
     fn Lang(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetLang(&mut self, _lang: DOMString) {
     }
 
     fn Dir(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetDir(&mut self, _dir: DOMString) -> ErrorResult {
@@ -137,7 +137,7 @@ impl<'a> HTMLElementMethods for JSRef<'a, HTMLElement> {
     }
 
     fn AccessKey(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAccessKey(&self, _key: DOMString) -> ErrorResult {
@@ -145,7 +145,7 @@ impl<'a> HTMLElementMethods for JSRef<'a, HTMLElement> {
     }
 
     fn AccessKeyLabel(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn Draggable(&self) -> bool {
@@ -157,7 +157,7 @@ impl<'a> HTMLElementMethods for JSRef<'a, HTMLElement> {
     }
 
     fn ContentEditable(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetContentEditable(&mut self, _val: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlembedelement.rs b/src/components/script/dom/htmlembedelement.rs
index b1b1134f0ac..03e62445fcb 100644
--- a/src/components/script/dom/htmlembedelement.rs
+++ b/src/components/script/dom/htmlembedelement.rs
@@ -58,7 +58,7 @@ pub trait HTMLEmbedElementMethods {
 
 impl<'a> HTMLEmbedElementMethods for JSRef<'a, HTMLEmbedElement> {
     fn Src(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSrc(&mut self, _src: DOMString) -> ErrorResult {
@@ -66,7 +66,7 @@ impl<'a> HTMLEmbedElementMethods for JSRef<'a, HTMLEmbedElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
@@ -74,7 +74,7 @@ impl<'a> HTMLEmbedElementMethods for JSRef<'a, HTMLEmbedElement> {
     }
 
     fn Width(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetWidth(&mut self, _width: DOMString) -> ErrorResult {
@@ -82,7 +82,7 @@ impl<'a> HTMLEmbedElementMethods for JSRef<'a, HTMLEmbedElement> {
     }
 
     fn Height(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHeight(&mut self, _height: DOMString) -> ErrorResult {
@@ -90,7 +90,7 @@ impl<'a> HTMLEmbedElementMethods for JSRef<'a, HTMLEmbedElement> {
     }
 
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _type: DOMString) -> ErrorResult {
@@ -98,7 +98,7 @@ impl<'a> HTMLEmbedElementMethods for JSRef<'a, HTMLEmbedElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _type: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlfieldsetelement.rs b/src/components/script/dom/htmlfieldsetelement.rs
index 73207cda9a9..9d22ac25bdd 100644
--- a/src/components/script/dom/htmlfieldsetelement.rs
+++ b/src/components/script/dom/htmlfieldsetelement.rs
@@ -72,7 +72,7 @@ impl<'a> HTMLFieldSetElementMethods for JSRef<'a, HTMLFieldSetElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -80,7 +80,7 @@ impl<'a> HTMLFieldSetElementMethods for JSRef<'a, HTMLFieldSetElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     // http://www.whatwg.org/html/#dom-fieldset-elements
@@ -110,7 +110,7 @@ impl<'a> HTMLFieldSetElementMethods for JSRef<'a, HTMLFieldSetElement> {
     }
 
     fn ValidationMessage(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn CheckValidity(&self) -> bool {
diff --git a/src/components/script/dom/htmlfontelement.rs b/src/components/script/dom/htmlfontelement.rs
index e561385da49..ba53fe53efa 100644
--- a/src/components/script/dom/htmlfontelement.rs
+++ b/src/components/script/dom/htmlfontelement.rs
@@ -51,7 +51,7 @@ pub trait HTMLFontElementMethods {
 
 impl<'a> HTMLFontElementMethods for JSRef<'a, HTMLFontElement> {
     fn Color(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetColor(&mut self, _color: DOMString) -> ErrorResult {
@@ -59,7 +59,7 @@ impl<'a> HTMLFontElementMethods for JSRef<'a, HTMLFontElement> {
     }
 
     fn Face(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFace(&mut self, _face: DOMString) -> ErrorResult {
@@ -67,7 +67,7 @@ impl<'a> HTMLFontElementMethods for JSRef<'a, HTMLFontElement> {
     }
 
     fn Size(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSize(&mut self, _size: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlformelement.rs b/src/components/script/dom/htmlformelement.rs
index 445ad6e0831..3588aa2ab00 100644
--- a/src/components/script/dom/htmlformelement.rs
+++ b/src/components/script/dom/htmlformelement.rs
@@ -70,7 +70,7 @@ pub trait HTMLFormElementMethods {
 
 impl<'a> HTMLFormElementMethods for JSRef<'a, HTMLFormElement> {
     fn AcceptCharset(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAcceptCharset(&mut self, _accept_charset: DOMString) -> ErrorResult {
@@ -78,7 +78,7 @@ impl<'a> HTMLFormElementMethods for JSRef<'a, HTMLFormElement> {
     }
 
     fn Action(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAction(&mut self, _action: DOMString) -> ErrorResult {
@@ -86,7 +86,7 @@ impl<'a> HTMLFormElementMethods for JSRef<'a, HTMLFormElement> {
     }
 
     fn Autocomplete(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAutocomplete(&mut self, _autocomplete: DOMString) -> ErrorResult {
@@ -94,7 +94,7 @@ impl<'a> HTMLFormElementMethods for JSRef<'a, HTMLFormElement> {
     }
 
     fn Enctype(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetEnctype(&mut self, _enctype: DOMString) -> ErrorResult {
@@ -102,7 +102,7 @@ impl<'a> HTMLFormElementMethods for JSRef<'a, HTMLFormElement> {
     }
 
     fn Encoding(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetEncoding(&mut self, _encoding: DOMString) -> ErrorResult {
@@ -110,7 +110,7 @@ impl<'a> HTMLFormElementMethods for JSRef<'a, HTMLFormElement> {
     }
 
     fn Method(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMethod(&mut self, _method: DOMString) -> ErrorResult {
@@ -118,7 +118,7 @@ impl<'a> HTMLFormElementMethods for JSRef<'a, HTMLFormElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -134,7 +134,7 @@ impl<'a> HTMLFormElementMethods for JSRef<'a, HTMLFormElement> {
     }
 
     fn Target(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetTarget(&mut self, _target: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlframeelement.rs b/src/components/script/dom/htmlframeelement.rs
index 858a182ba10..3322fd32cdc 100644
--- a/src/components/script/dom/htmlframeelement.rs
+++ b/src/components/script/dom/htmlframeelement.rs
@@ -64,7 +64,7 @@ pub trait HTMLFrameElementMethods {
 
 impl<'a> HTMLFrameElementMethods for JSRef<'a, HTMLFrameElement> {
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -72,7 +72,7 @@ impl<'a> HTMLFrameElementMethods for JSRef<'a, HTMLFrameElement> {
     }
 
     fn Scrolling(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetScrolling(&mut self, _scrolling: DOMString) -> ErrorResult {
@@ -80,7 +80,7 @@ impl<'a> HTMLFrameElementMethods for JSRef<'a, HTMLFrameElement> {
     }
 
     fn Src(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSrc(&mut self, _src: DOMString) -> ErrorResult {
@@ -88,7 +88,7 @@ impl<'a> HTMLFrameElementMethods for JSRef<'a, HTMLFrameElement> {
     }
 
     fn FrameBorder(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFrameBorder(&mut self, _frameborder: DOMString) -> ErrorResult {
@@ -96,7 +96,7 @@ impl<'a> HTMLFrameElementMethods for JSRef<'a, HTMLFrameElement> {
     }
 
     fn LongDesc(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetLongDesc(&mut self, _longdesc: DOMString) -> ErrorResult {
@@ -120,7 +120,7 @@ impl<'a> HTMLFrameElementMethods for JSRef<'a, HTMLFrameElement> {
     }
 
     fn MarginHeight(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMarginHeight(&mut self, _height: DOMString) -> ErrorResult {
@@ -128,7 +128,7 @@ impl<'a> HTMLFrameElementMethods for JSRef<'a, HTMLFrameElement> {
     }
 
     fn MarginWidth(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMarginWidth(&mut self, _height: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlframesetelement.rs b/src/components/script/dom/htmlframesetelement.rs
index c9effdd7e2e..db20f2674fc 100644
--- a/src/components/script/dom/htmlframesetelement.rs
+++ b/src/components/script/dom/htmlframesetelement.rs
@@ -49,7 +49,7 @@ pub trait HTMLFrameSetElementMethods {
 
 impl<'a> HTMLFrameSetElementMethods for JSRef<'a, HTMLFrameSetElement> {
     fn Cols(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCols(&mut self, _cols: DOMString) -> ErrorResult {
@@ -57,7 +57,7 @@ impl<'a> HTMLFrameSetElementMethods for JSRef<'a, HTMLFrameSetElement> {
     }
 
     fn Rows(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetRows(&mut self, _rows: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlheadingelement.rs b/src/components/script/dom/htmlheadingelement.rs
index 7da612ab81e..6057c5b7494 100644
--- a/src/components/script/dom/htmlheadingelement.rs
+++ b/src/components/script/dom/htmlheadingelement.rs
@@ -58,7 +58,7 @@ pub trait HTMLHeadingElementMethods {
 
 impl<'a> HTMLHeadingElementMethods for JSRef<'a, HTMLHeadingElement> {
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) {
diff --git a/src/components/script/dom/htmlhrelement.rs b/src/components/script/dom/htmlhrelement.rs
index b140486165a..827248bbbaa 100644
--- a/src/components/script/dom/htmlhrelement.rs
+++ b/src/components/script/dom/htmlhrelement.rs
@@ -55,7 +55,7 @@ pub trait HTMLHRElementMethods {
 
 impl<'a> HTMLHRElementMethods for JSRef<'a, HTMLHRElement> {
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
@@ -63,7 +63,7 @@ impl<'a> HTMLHRElementMethods for JSRef<'a, HTMLHRElement> {
     }
 
     fn Color(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetColor(&mut self, _color: DOMString) -> ErrorResult {
@@ -79,7 +79,7 @@ impl<'a> HTMLHRElementMethods for JSRef<'a, HTMLHRElement> {
     }
 
     fn Size(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSize(&mut self, _size: DOMString) -> ErrorResult {
@@ -87,7 +87,7 @@ impl<'a> HTMLHRElementMethods for JSRef<'a, HTMLHRElement> {
     }
 
     fn Width(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetWidth(&mut self, _width: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlhtmlelement.rs b/src/components/script/dom/htmlhtmlelement.rs
index 27ca473e3a2..a0820664c8f 100644
--- a/src/components/script/dom/htmlhtmlelement.rs
+++ b/src/components/script/dom/htmlhtmlelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLHtmlElementMethods {
 
 impl<'a> HTMLHtmlElementMethods for JSRef<'a, HTMLHtmlElement> {
     fn Version(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetVersion(&mut self, _version: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmliframeelement.rs b/src/components/script/dom/htmliframeelement.rs
index 31c2981a5e1..0591d39e3cd 100644
--- a/src/components/script/dom/htmliframeelement.rs
+++ b/src/components/script/dom/htmliframeelement.rs
@@ -119,7 +119,7 @@ pub trait HTMLIFrameElementMethods {
 
 impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     fn Src(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSrc(&mut self, _src: DOMString) -> ErrorResult {
@@ -127,7 +127,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn Srcdoc(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSrcdoc(&mut self, _srcdoc: DOMString) -> ErrorResult {
@@ -135,7 +135,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -161,7 +161,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn Width(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetWidth(&mut self, _width: DOMString) -> ErrorResult {
@@ -169,7 +169,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn Height(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHeight(&mut self, _height: DOMString) -> ErrorResult {
@@ -185,7 +185,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
@@ -193,7 +193,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn Scrolling(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetScrolling(&mut self, _scrolling: DOMString) -> ErrorResult {
@@ -201,7 +201,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn FrameBorder(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFrameBorder(&mut self, _frameborder: DOMString) -> ErrorResult {
@@ -209,7 +209,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn LongDesc(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetLongDesc(&mut self, _longdesc: DOMString) -> ErrorResult {
@@ -217,7 +217,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn MarginHeight(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMarginHeight(&mut self, _marginheight: DOMString) -> ErrorResult {
@@ -225,7 +225,7 @@ impl<'a> HTMLIFrameElementMethods for JSRef<'a, HTMLIFrameElement> {
     }
 
     fn MarginWidth(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMarginWidth(&mut self, _marginwidth: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlimageelement.rs b/src/components/script/dom/htmlimageelement.rs
index c3a60874c6d..b1309c214e6 100644
--- a/src/components/script/dom/htmlimageelement.rs
+++ b/src/components/script/dom/htmlimageelement.rs
@@ -145,7 +145,7 @@ impl<'a> HTMLImageElementMethods for JSRef<'a, HTMLImageElement> {
     }
 
     fn CrossOrigin(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCrossOrigin(&mut self, _cross_origin: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlinputelement.rs b/src/components/script/dom/htmlinputelement.rs
index f75ef6c248c..7c6a2640b30 100644
--- a/src/components/script/dom/htmlinputelement.rs
+++ b/src/components/script/dom/htmlinputelement.rs
@@ -123,7 +123,7 @@ pub trait HTMLInputElementMethods {
 
 impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     fn Accept(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAccept(&mut self, _accept: DOMString) -> ErrorResult {
@@ -131,7 +131,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Alt(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlt(&mut self, _alt: DOMString) -> ErrorResult {
@@ -139,7 +139,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Autocomplete(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAutocomplete(&mut self, _autocomple: DOMString) -> ErrorResult {
@@ -178,7 +178,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn FormAction(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFormAction(&mut self, _form_action: DOMString) -> ErrorResult {
@@ -186,7 +186,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn FormEnctype(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFormEnctype(&mut self, _form_enctype: DOMString) -> ErrorResult {
@@ -194,7 +194,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn FormMethod(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFormMethod(&mut self, _form_method: DOMString) -> ErrorResult {
@@ -210,7 +210,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn FormTarget(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFormTarget(&mut self, _form_target: DOMString) -> ErrorResult {
@@ -233,7 +233,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn InputMode(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetInputMode(&mut self, _input_mode: DOMString) -> ErrorResult {
@@ -241,7 +241,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Max(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMax(&mut self, _max: DOMString) -> ErrorResult {
@@ -257,7 +257,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Min(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMin(&mut self, _min: DOMString) -> ErrorResult {
@@ -273,7 +273,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -281,7 +281,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Pattern(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPattern(&mut self, _pattern: DOMString) -> ErrorResult {
@@ -289,7 +289,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Placeholder(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPlaceholder(&mut self, _placeholder: DOMString) -> ErrorResult {
@@ -321,7 +321,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Src(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSrc(&mut self, _src: DOMString) -> ErrorResult {
@@ -329,7 +329,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Step(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetStep(&mut self, _step: DOMString) -> ErrorResult {
@@ -337,7 +337,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
@@ -345,7 +345,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn DefaultValue(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetDefaultValue(&mut self, _default_value: DOMString) -> ErrorResult {
@@ -353,7 +353,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Value(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValue(&mut self, _value: DOMString) -> ErrorResult {
@@ -375,7 +375,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn GetValidationMessage(&self) -> Fallible<DOMString> {
-        Ok(~"")
+        Ok("".to_owned())
     }
 
     fn CheckValidity(&self) -> bool {
@@ -405,7 +405,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn GetSelectionDirection(&self) -> Fallible<DOMString> {
-        Ok(~"")
+        Ok("".to_owned())
     }
 
     fn SetSelectionDirection(&mut self, _selection_direction: DOMString) -> ErrorResult {
@@ -413,7 +413,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
@@ -421,7 +421,7 @@ impl<'a> HTMLInputElementMethods for JSRef<'a, HTMLInputElement> {
     }
 
     fn UseMap(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetUseMap(&mut self, _align: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmllabelelement.rs b/src/components/script/dom/htmllabelelement.rs
index 9c53ec073b4..c4eee12897f 100644
--- a/src/components/script/dom/htmllabelelement.rs
+++ b/src/components/script/dom/htmllabelelement.rs
@@ -46,7 +46,7 @@ pub trait HTMLLabelElementMethods {
 
 impl<'a> HTMLLabelElementMethods for JSRef<'a, HTMLLabelElement> {
     fn HtmlFor(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHtmlFor(&mut self, _html_for: DOMString) {
diff --git a/src/components/script/dom/htmllegendelement.rs b/src/components/script/dom/htmllegendelement.rs
index ad7653e6424..833a3b59b2b 100644
--- a/src/components/script/dom/htmllegendelement.rs
+++ b/src/components/script/dom/htmllegendelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLLegendElementMethods {
 
 impl<'a> HTMLLegendElementMethods for JSRef<'a, HTMLLegendElement> {
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmllielement.rs b/src/components/script/dom/htmllielement.rs
index de85baea7f3..679a443c4e9 100644
--- a/src/components/script/dom/htmllielement.rs
+++ b/src/components/script/dom/htmllielement.rs
@@ -57,7 +57,7 @@ impl<'a> HTMLLIElementMethods for JSRef<'a, HTMLLIElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmllinkelement.rs b/src/components/script/dom/htmllinkelement.rs
index c620526bfa1..380a151a3fd 100644
--- a/src/components/script/dom/htmllinkelement.rs
+++ b/src/components/script/dom/htmllinkelement.rs
@@ -72,7 +72,7 @@ impl<'a> HTMLLinkElementMethods for JSRef<'a, HTMLLinkElement> {
     }
 
     fn Href(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHref(&mut self, _href: DOMString) -> ErrorResult {
@@ -80,7 +80,7 @@ impl<'a> HTMLLinkElementMethods for JSRef<'a, HTMLLinkElement> {
     }
 
     fn CrossOrigin(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCrossOrigin(&mut self, _cross_origin: DOMString) -> ErrorResult {
@@ -88,7 +88,7 @@ impl<'a> HTMLLinkElementMethods for JSRef<'a, HTMLLinkElement> {
     }
 
     fn Rel(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetRel(&mut self, _rel: DOMString) -> ErrorResult {
@@ -96,7 +96,7 @@ impl<'a> HTMLLinkElementMethods for JSRef<'a, HTMLLinkElement> {
     }
 
     fn Media(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMedia(&mut self, _media: DOMString) -> ErrorResult {
@@ -104,7 +104,7 @@ impl<'a> HTMLLinkElementMethods for JSRef<'a, HTMLLinkElement> {
     }
 
     fn Hreflang(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHreflang(&mut self, _href: DOMString) -> ErrorResult {
@@ -112,7 +112,7 @@ impl<'a> HTMLLinkElementMethods for JSRef<'a, HTMLLinkElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
@@ -120,7 +120,7 @@ impl<'a> HTMLLinkElementMethods for JSRef<'a, HTMLLinkElement> {
     }
 
     fn Charset(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCharset(&mut self, _charset: DOMString) -> ErrorResult {
@@ -128,7 +128,7 @@ impl<'a> HTMLLinkElementMethods for JSRef<'a, HTMLLinkElement> {
     }
 
     fn Rev(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetRev(&mut self, _rev: DOMString) -> ErrorResult {
@@ -136,7 +136,7 @@ impl<'a> HTMLLinkElementMethods for JSRef<'a, HTMLLinkElement> {
     }
 
     fn Target(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetTarget(&mut self, _target: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlmapelement.rs b/src/components/script/dom/htmlmapelement.rs
index 08a6e2c5c5d..53f65097ea1 100644
--- a/src/components/script/dom/htmlmapelement.rs
+++ b/src/components/script/dom/htmlmapelement.rs
@@ -49,7 +49,7 @@ pub trait HTMLMapElementMethods {
 
 impl<'a> HTMLMapElementMethods for JSRef<'a, HTMLMapElement> {
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlmediaelement.rs b/src/components/script/dom/htmlmediaelement.rs
index 763650008a1..8725f5af7fc 100644
--- a/src/components/script/dom/htmlmediaelement.rs
+++ b/src/components/script/dom/htmlmediaelement.rs
@@ -74,7 +74,7 @@ pub trait HTMLMediaElementMethods {
 
 impl<'a> HTMLMediaElementMethods for JSRef<'a, HTMLMediaElement> {
     fn Src(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSrc(&mut self, _src: DOMString) -> ErrorResult {
@@ -82,11 +82,11 @@ impl<'a> HTMLMediaElementMethods for JSRef<'a, HTMLMediaElement> {
     }
 
     fn CurrentSrc(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn CrossOrigin(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCrossOrigin(&mut self, _cross_origin: DOMString) -> ErrorResult {
@@ -94,7 +94,7 @@ impl<'a> HTMLMediaElementMethods for JSRef<'a, HTMLMediaElement> {
     }
 
     fn Preload(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPreload(&mut self, _preload: DOMString) -> ErrorResult {
@@ -105,7 +105,7 @@ impl<'a> HTMLMediaElementMethods for JSRef<'a, HTMLMediaElement> {
     }
 
     fn CanPlayType(&self, _type: DOMString) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn ReadyState(&self) -> u16 {
diff --git a/src/components/script/dom/htmlmetaelement.rs b/src/components/script/dom/htmlmetaelement.rs
index 03cac21fca7..52077bf9170 100644
--- a/src/components/script/dom/htmlmetaelement.rs
+++ b/src/components/script/dom/htmlmetaelement.rs
@@ -53,7 +53,7 @@ pub trait HTMLMetaElementMethods {
 
 impl<'a> HTMLMetaElementMethods for JSRef<'a, HTMLMetaElement> {
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -61,7 +61,7 @@ impl<'a> HTMLMetaElementMethods for JSRef<'a, HTMLMetaElement> {
     }
 
     fn HttpEquiv(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHttpEquiv(&mut self, _http_equiv: DOMString) -> ErrorResult {
@@ -69,7 +69,7 @@ impl<'a> HTMLMetaElementMethods for JSRef<'a, HTMLMetaElement> {
     }
 
     fn Content(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetContent(&mut self, _content: DOMString) -> ErrorResult {
@@ -77,7 +77,7 @@ impl<'a> HTMLMetaElementMethods for JSRef<'a, HTMLMetaElement> {
     }
 
     fn Scheme(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetScheme(&mut self, _scheme: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlmodelement.rs b/src/components/script/dom/htmlmodelement.rs
index c28eb9cdfba..5a1008f7c94 100644
--- a/src/components/script/dom/htmlmodelement.rs
+++ b/src/components/script/dom/htmlmodelement.rs
@@ -49,7 +49,7 @@ pub trait HTMLModElementMethods {
 
 impl<'a> HTMLModElementMethods for JSRef<'a, HTMLModElement> {
     fn Cite(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCite(&mut self, _cite: DOMString) -> ErrorResult {
@@ -57,7 +57,7 @@ impl<'a> HTMLModElementMethods for JSRef<'a, HTMLModElement> {
     }
 
     fn DateTime(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetDateTime(&mut self, _datetime: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlobjectelement.rs b/src/components/script/dom/htmlobjectelement.rs
index c020765d431..77bbe7551c0 100644
--- a/src/components/script/dom/htmlobjectelement.rs
+++ b/src/components/script/dom/htmlobjectelement.rs
@@ -125,7 +125,7 @@ pub trait HTMLObjectElementMethods {
 
 impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     fn Data(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetData(&mut self, _data: DOMString) -> ErrorResult {
@@ -133,7 +133,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
@@ -141,7 +141,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -149,7 +149,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn UseMap(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetUseMap(&mut self, _use_map: DOMString) -> ErrorResult {
@@ -161,7 +161,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn Width(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetWidth(&mut self, _width: DOMString) -> ErrorResult {
@@ -169,7 +169,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn Height(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHeight(&mut self, _height: DOMString) -> ErrorResult {
@@ -194,7 +194,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn ValidationMessage(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn CheckValidity(&self) -> bool {
@@ -205,7 +205,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
@@ -213,7 +213,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn Archive(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetArchive(&mut self, _archive: DOMString) -> ErrorResult {
@@ -221,7 +221,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn Code(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCode(&mut self, _code: DOMString) -> ErrorResult {
@@ -245,7 +245,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn Standby(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetStandby(&mut self, _standby: DOMString) -> ErrorResult {
@@ -261,7 +261,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn CodeBase(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCodeBase(&mut self, _codebase: DOMString) -> ErrorResult {
@@ -269,7 +269,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn CodeType(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCodeType(&mut self, _codetype: DOMString) -> ErrorResult {
@@ -277,7 +277,7 @@ impl<'a> HTMLObjectElementMethods for JSRef<'a, HTMLObjectElement> {
     }
 
     fn Border(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetBorder(&mut self, _border: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlolistelement.rs b/src/components/script/dom/htmlolistelement.rs
index b8694f356c8..ca377dfa96d 100644
--- a/src/components/script/dom/htmlolistelement.rs
+++ b/src/components/script/dom/htmlolistelement.rs
@@ -69,7 +69,7 @@ impl<'a> HTMLOListElementMethods for JSRef<'a, HTMLOListElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmloptgroupelement.rs b/src/components/script/dom/htmloptgroupelement.rs
index 3b5c5fab456..75819e4b291 100644
--- a/src/components/script/dom/htmloptgroupelement.rs
+++ b/src/components/script/dom/htmloptgroupelement.rs
@@ -57,7 +57,7 @@ impl<'a> HTMLOptGroupElementMethods for JSRef<'a, HTMLOptGroupElement> {
     }
 
     fn Label(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetLabel(&mut self, _label: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmloptionelement.rs b/src/components/script/dom/htmloptionelement.rs
index 550d352af36..51b101a50d4 100644
--- a/src/components/script/dom/htmloptionelement.rs
+++ b/src/components/script/dom/htmloptionelement.rs
@@ -72,7 +72,7 @@ impl<'a> HTMLOptionElementMethods for JSRef<'a, HTMLOptionElement> {
     }
 
     fn Label(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetLabel(&mut self, _label: DOMString) -> ErrorResult {
@@ -96,7 +96,7 @@ impl<'a> HTMLOptionElementMethods for JSRef<'a, HTMLOptionElement> {
     }
 
     fn Value(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValue(&mut self, _value: DOMString) -> ErrorResult {
@@ -104,7 +104,7 @@ impl<'a> HTMLOptionElementMethods for JSRef<'a, HTMLOptionElement> {
     }
 
     fn Text(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetText(&mut self, _text: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmloutputelement.rs b/src/components/script/dom/htmloutputelement.rs
index 3952f3cef97..570eb12da25 100644
--- a/src/components/script/dom/htmloutputelement.rs
+++ b/src/components/script/dom/htmloutputelement.rs
@@ -66,7 +66,7 @@ impl<'a> HTMLOutputElementMethods for JSRef<'a, HTMLOutputElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -74,11 +74,11 @@ impl<'a> HTMLOutputElementMethods for JSRef<'a, HTMLOutputElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn DefaultValue(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetDefaultValue(&mut self, _value: DOMString) -> ErrorResult {
@@ -86,7 +86,7 @@ impl<'a> HTMLOutputElementMethods for JSRef<'a, HTMLOutputElement> {
     }
 
     fn Value(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValue(&mut self, _value: DOMString) -> ErrorResult {
@@ -106,7 +106,7 @@ impl<'a> HTMLOutputElementMethods for JSRef<'a, HTMLOutputElement> {
     }
 
     fn ValidationMessage(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValidationMessage(&mut self, _message: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlparagraphelement.rs b/src/components/script/dom/htmlparagraphelement.rs
index 95620dec3dd..226300acaa8 100644
--- a/src/components/script/dom/htmlparagraphelement.rs
+++ b/src/components/script/dom/htmlparagraphelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLParagraphElementMethods {
 
 impl<'a> HTMLParagraphElementMethods for JSRef<'a, HTMLParagraphElement> {
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlparamelement.rs b/src/components/script/dom/htmlparamelement.rs
index 115d1759964..4d5e2550ba9 100644
--- a/src/components/script/dom/htmlparamelement.rs
+++ b/src/components/script/dom/htmlparamelement.rs
@@ -53,7 +53,7 @@ pub trait HTMLParamElementMethods {
 
 impl<'a> HTMLParamElementMethods for JSRef<'a, HTMLParamElement> {
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -61,7 +61,7 @@ impl<'a> HTMLParamElementMethods for JSRef<'a, HTMLParamElement> {
     }
 
     fn Value(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValue(&mut self, _value: DOMString) -> ErrorResult {
@@ -69,7 +69,7 @@ impl<'a> HTMLParamElementMethods for JSRef<'a, HTMLParamElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
@@ -77,7 +77,7 @@ impl<'a> HTMLParamElementMethods for JSRef<'a, HTMLParamElement> {
     }
 
     fn ValueType(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValueType(&mut self, _value_type: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlquoteelement.rs b/src/components/script/dom/htmlquoteelement.rs
index 11aba48adfe..1f3f31b12e5 100644
--- a/src/components/script/dom/htmlquoteelement.rs
+++ b/src/components/script/dom/htmlquoteelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLQuoteElementMethods {
 
 impl<'a> HTMLQuoteElementMethods for JSRef<'a, HTMLQuoteElement> {
     fn Cite(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCite(&self, _cite: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlscriptelement.rs b/src/components/script/dom/htmlscriptelement.rs
index 79b42ddc423..a38877f674f 100644
--- a/src/components/script/dom/htmlscriptelement.rs
+++ b/src/components/script/dom/htmlscriptelement.rs
@@ -73,7 +73,7 @@ impl<'a> HTMLScriptElementMethods for JSRef<'a, HTMLScriptElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
@@ -81,7 +81,7 @@ impl<'a> HTMLScriptElementMethods for JSRef<'a, HTMLScriptElement> {
     }
 
     fn Charset(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCharset(&mut self, _charset: DOMString) -> ErrorResult {
@@ -105,7 +105,7 @@ impl<'a> HTMLScriptElementMethods for JSRef<'a, HTMLScriptElement> {
     }
 
     fn CrossOrigin(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCrossOrigin(&mut self, _cross_origin: DOMString) -> ErrorResult {
@@ -113,7 +113,7 @@ impl<'a> HTMLScriptElementMethods for JSRef<'a, HTMLScriptElement> {
     }
 
     fn Text(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetText(&mut self, _text: DOMString) -> ErrorResult {
@@ -121,7 +121,7 @@ impl<'a> HTMLScriptElementMethods for JSRef<'a, HTMLScriptElement> {
     }
 
     fn Event(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetEvent(&mut self, _event: DOMString) -> ErrorResult {
@@ -129,7 +129,7 @@ impl<'a> HTMLScriptElementMethods for JSRef<'a, HTMLScriptElement> {
     }
 
     fn HtmlFor(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHtmlFor(&mut self, _html_for: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlselectelement.rs b/src/components/script/dom/htmlselectelement.rs
index cabeacbf47a..a155fccd5ab 100644
--- a/src/components/script/dom/htmlselectelement.rs
+++ b/src/components/script/dom/htmlselectelement.rs
@@ -111,7 +111,7 @@ impl<'a> HTMLSelectElementMethods for JSRef<'a, HTMLSelectElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -135,7 +135,7 @@ impl<'a> HTMLSelectElementMethods for JSRef<'a, HTMLSelectElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn Length(&self) -> u32 {
@@ -177,7 +177,7 @@ impl<'a> HTMLSelectElementMethods for JSRef<'a, HTMLSelectElement> {
     }
 
     fn Value(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValue(&mut self, _value: DOMString) {
@@ -196,7 +196,7 @@ impl<'a> HTMLSelectElementMethods for JSRef<'a, HTMLSelectElement> {
     }
 
     fn ValidationMessage(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValidationMessage(&mut self, _message: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlserializer.rs b/src/components/script/dom/htmlserializer.rs
index 3a2148547ee..494bdb9fb8b 100644
--- a/src/components/script/dom/htmlserializer.rs
+++ b/src/components/script/dom/htmlserializer.rs
@@ -20,7 +20,7 @@ use dom::processinginstruction::ProcessingInstruction;
 use dom::text::Text;
 
 pub fn serialize(iterator: &mut NodeIterator) -> ~str {
-    let mut html = ~"";
+    let mut html = "".to_owned();
     let mut open_elements: Vec<~str> = vec!();
 
     for node in *iterator {
@@ -51,7 +51,7 @@ pub fn serialize(iterator: &mut NodeIterator) -> ~str {
                     serialize_processing_instruction(processing_instruction)
                 }
                 DocumentFragmentNodeTypeId => {
-                    ~""
+                    "".to_owned()
                 }
                 DocumentNodeTypeId => {
                     fail!("It shouldn't be possible to serialize a document node")
diff --git a/src/components/script/dom/htmlsourceelement.rs b/src/components/script/dom/htmlsourceelement.rs
index 5ea79b01b45..69e9315a813 100644
--- a/src/components/script/dom/htmlsourceelement.rs
+++ b/src/components/script/dom/htmlsourceelement.rs
@@ -51,7 +51,7 @@ pub trait HTMLSourceElementMethods {
 
 impl<'a> HTMLSourceElementMethods for JSRef<'a, HTMLSourceElement> {
     fn Src(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSrc(&mut self, _src: DOMString) -> ErrorResult {
@@ -59,7 +59,7 @@ impl<'a> HTMLSourceElementMethods for JSRef<'a, HTMLSourceElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
@@ -67,7 +67,7 @@ impl<'a> HTMLSourceElementMethods for JSRef<'a, HTMLSourceElement> {
     }
 
     fn Media(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMedia(&mut self, _media: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlstyleelement.rs b/src/components/script/dom/htmlstyleelement.rs
index b0688f30889..ac990e86900 100644
--- a/src/components/script/dom/htmlstyleelement.rs
+++ b/src/components/script/dom/htmlstyleelement.rs
@@ -63,7 +63,7 @@ impl<'a> HTMLStyleElementMethods for JSRef<'a, HTMLStyleElement> {
     }
 
     fn Media(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetMedia(&mut self, _media: DOMString) -> ErrorResult {
@@ -71,7 +71,7 @@ impl<'a> HTMLStyleElementMethods for JSRef<'a, HTMLStyleElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltablecaptionelement.rs b/src/components/script/dom/htmltablecaptionelement.rs
index 914208ccb73..7784246f379 100644
--- a/src/components/script/dom/htmltablecaptionelement.rs
+++ b/src/components/script/dom/htmltablecaptionelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLTableCaptionElementMethods {
 
 impl<'a> HTMLTableCaptionElementMethods for JSRef<'a, HTMLTableCaptionElement> {
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltablecellelement.rs b/src/components/script/dom/htmltablecellelement.rs
index d03e2d83d72..00adcb3e059 100644
--- a/src/components/script/dom/htmltablecellelement.rs
+++ b/src/components/script/dom/htmltablecellelement.rs
@@ -86,7 +86,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn Headers(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHeaders(&self, _headers: DOMString) -> ErrorResult {
@@ -102,7 +102,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn Abbr(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAbbr(&self, _abbr: DOMString) -> ErrorResult {
@@ -110,7 +110,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn Scope(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetScope(&self, _abbr: DOMString) -> ErrorResult {
@@ -118,7 +118,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&self, _align: DOMString) -> ErrorResult {
@@ -126,7 +126,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn Axis(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAxis(&self, _axis: DOMString) -> ErrorResult {
@@ -134,7 +134,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn Height(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHeight(&self, _height: DOMString) -> ErrorResult {
@@ -142,7 +142,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn Width(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetWidth(&self, _width: DOMString) -> ErrorResult {
@@ -150,7 +150,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn Ch(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCh(&self, _ch: DOMString) -> ErrorResult {
@@ -158,7 +158,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn ChOff(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetChOff(&self, _ch_off: DOMString) -> ErrorResult {
@@ -174,7 +174,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn VAlign(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetVAlign(&self, _valign: DOMString) -> ErrorResult {
@@ -182,7 +182,7 @@ impl<'a> HTMLTableCellElementMethods for JSRef<'a, HTMLTableCellElement> {
     }
 
     fn BgColor(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetBgColor(&self, _bg_color: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltablecolelement.rs b/src/components/script/dom/htmltablecolelement.rs
index c6a02b669ad..da7b2d9d0ef 100644
--- a/src/components/script/dom/htmltablecolelement.rs
+++ b/src/components/script/dom/htmltablecolelement.rs
@@ -65,7 +65,7 @@ impl<'a> HTMLTableColElementMethods for JSRef<'a, HTMLTableColElement> {
     }
 
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
@@ -73,7 +73,7 @@ impl<'a> HTMLTableColElementMethods for JSRef<'a, HTMLTableColElement> {
     }
 
     fn Ch(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCh(&mut self, _ch: DOMString) -> ErrorResult {
@@ -81,7 +81,7 @@ impl<'a> HTMLTableColElementMethods for JSRef<'a, HTMLTableColElement> {
     }
 
     fn ChOff(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetChOff(&mut self, _ch_off: DOMString) -> ErrorResult {
@@ -89,7 +89,7 @@ impl<'a> HTMLTableColElementMethods for JSRef<'a, HTMLTableColElement> {
     }
 
     fn VAlign(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetVAlign(&mut self, _v_align: DOMString) -> ErrorResult {
@@ -97,7 +97,7 @@ impl<'a> HTMLTableColElementMethods for JSRef<'a, HTMLTableColElement> {
     }
 
     fn Width(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetWidth(&mut self, _width: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltableelement.rs b/src/components/script/dom/htmltableelement.rs
index b3e040d2098..918cbddf08d 100644
--- a/src/components/script/dom/htmltableelement.rs
+++ b/src/components/script/dom/htmltableelement.rs
@@ -93,7 +93,7 @@ impl<'a> HTMLTableElementMethods for JSRef<'a, HTMLTableElement> {
     }
 
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&self, _align: DOMString) -> ErrorResult {
@@ -101,7 +101,7 @@ impl<'a> HTMLTableElementMethods for JSRef<'a, HTMLTableElement> {
     }
 
     fn Border(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetBorder(&self, _border: DOMString) -> ErrorResult {
@@ -109,7 +109,7 @@ impl<'a> HTMLTableElementMethods for JSRef<'a, HTMLTableElement> {
     }
 
     fn Frame(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetFrame(&self, _frame: DOMString) -> ErrorResult {
@@ -117,7 +117,7 @@ impl<'a> HTMLTableElementMethods for JSRef<'a, HTMLTableElement> {
     }
 
     fn Rules(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetRules(&self, _rules: DOMString) -> ErrorResult {
@@ -125,7 +125,7 @@ impl<'a> HTMLTableElementMethods for JSRef<'a, HTMLTableElement> {
     }
 
     fn Summary(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSummary(&self, _summary: DOMString) -> ErrorResult {
@@ -133,7 +133,7 @@ impl<'a> HTMLTableElementMethods for JSRef<'a, HTMLTableElement> {
     }
 
     fn Width(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetWidth(&self, _width: DOMString) -> ErrorResult {
@@ -141,7 +141,7 @@ impl<'a> HTMLTableElementMethods for JSRef<'a, HTMLTableElement> {
     }
 
     fn BgColor(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetBgColor(&self, _bg_color: DOMString) -> ErrorResult {
@@ -149,7 +149,7 @@ impl<'a> HTMLTableElementMethods for JSRef<'a, HTMLTableElement> {
     }
 
     fn CellPadding(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCellPadding(&self, _cell_padding: DOMString) -> ErrorResult {
@@ -157,7 +157,7 @@ impl<'a> HTMLTableElementMethods for JSRef<'a, HTMLTableElement> {
     }
 
     fn CellSpacing(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCellSpacing(&self, _cell_spacing: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltablerowelement.rs b/src/components/script/dom/htmltablerowelement.rs
index 053735b5f40..47004c75f6f 100644
--- a/src/components/script/dom/htmltablerowelement.rs
+++ b/src/components/script/dom/htmltablerowelement.rs
@@ -80,7 +80,7 @@ impl<'a> HTMLTableRowElementMethods for JSRef<'a, HTMLTableRowElement> {
     }
 
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&self, _align: DOMString) -> ErrorResult {
@@ -88,7 +88,7 @@ impl<'a> HTMLTableRowElementMethods for JSRef<'a, HTMLTableRowElement> {
     }
 
     fn Ch(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCh(&self, _ch: DOMString) -> ErrorResult {
@@ -96,7 +96,7 @@ impl<'a> HTMLTableRowElementMethods for JSRef<'a, HTMLTableRowElement> {
     }
 
     fn ChOff(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetChOff(&self, _ch_off: DOMString) -> ErrorResult {
@@ -104,7 +104,7 @@ impl<'a> HTMLTableRowElementMethods for JSRef<'a, HTMLTableRowElement> {
     }
 
     fn VAlign(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetVAlign(&self, _v_align: DOMString) -> ErrorResult {
@@ -112,7 +112,7 @@ impl<'a> HTMLTableRowElementMethods for JSRef<'a, HTMLTableRowElement> {
     }
 
     fn BgColor(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetBgColor(&self, _bg_color: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltablesectionelement.rs b/src/components/script/dom/htmltablesectionelement.rs
index def03af4bb2..200c10e649d 100644
--- a/src/components/script/dom/htmltablesectionelement.rs
+++ b/src/components/script/dom/htmltablesectionelement.rs
@@ -58,7 +58,7 @@ impl<'a> HTMLTableSectionElementMethods for JSRef<'a, HTMLTableSectionElement> {
     }
 
     fn Align(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetAlign(&mut self, _align: DOMString) -> ErrorResult {
@@ -66,7 +66,7 @@ impl<'a> HTMLTableSectionElementMethods for JSRef<'a, HTMLTableSectionElement> {
     }
 
     fn Ch(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetCh(&mut self, _ch: DOMString) -> ErrorResult {
@@ -74,7 +74,7 @@ impl<'a> HTMLTableSectionElementMethods for JSRef<'a, HTMLTableSectionElement> {
     }
 
     fn ChOff(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetChOff(&mut self, _ch_off: DOMString) -> ErrorResult {
@@ -82,7 +82,7 @@ impl<'a> HTMLTableSectionElementMethods for JSRef<'a, HTMLTableSectionElement> {
     }
 
     fn VAlign(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetVAlign(&mut self, _v_align: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltextareaelement.rs b/src/components/script/dom/htmltextareaelement.rs
index 45343a0bc02..57854044254 100644
--- a/src/components/script/dom/htmltextareaelement.rs
+++ b/src/components/script/dom/htmltextareaelement.rs
@@ -118,7 +118,7 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&mut self, _name: DOMString) -> ErrorResult {
@@ -126,7 +126,7 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
     }
 
     fn Placeholder(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPlaceholder(&mut self, _placeholder: DOMString) -> ErrorResult {
@@ -158,7 +158,7 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
     }
 
     fn Wrap(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetWrap(&mut self, _wrap: DOMString) -> ErrorResult {
@@ -166,14 +166,14 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) {
     }
 
     fn DefaultValue(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetDefaultValue(&mut self, _default_value: DOMString) -> ErrorResult {
@@ -181,7 +181,7 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
     }
 
     fn Value(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetValue(&mut self, _value: DOMString) {
@@ -204,7 +204,7 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
     }
 
     fn ValidationMessage(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn CheckValidity(&self) -> bool {
@@ -234,7 +234,7 @@ impl<'a> HTMLTextAreaElementMethods for JSRef<'a, HTMLTextAreaElement> {
     }
 
     fn GetSelectionDirection(&self) -> Fallible<DOMString> {
-        Ok(~"")
+        Ok("".to_owned())
     }
 
     fn SetSelectionDirection(&self, _selection_direction: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltimeelement.rs b/src/components/script/dom/htmltimeelement.rs
index 34f466419a1..8993c6a2df5 100644
--- a/src/components/script/dom/htmltimeelement.rs
+++ b/src/components/script/dom/htmltimeelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLTimeElementMethods {
 
 impl<'a> HTMLTimeElementMethods for JSRef<'a, HTMLTimeElement> {
     fn DateTime(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetDateTime(&mut self, _dateTime: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltitleelement.rs b/src/components/script/dom/htmltitleelement.rs
index e327231cc4b..dedba6e9ba4 100644
--- a/src/components/script/dom/htmltitleelement.rs
+++ b/src/components/script/dom/htmltitleelement.rs
@@ -47,7 +47,7 @@ pub trait HTMLTitleElementMethods {
 
 impl<'a> HTMLTitleElementMethods for JSRef<'a, HTMLTitleElement> {
     fn Text(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetText(&mut self, _text: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmltrackelement.rs b/src/components/script/dom/htmltrackelement.rs
index f54eec79e38..8c95fa967af 100644
--- a/src/components/script/dom/htmltrackelement.rs
+++ b/src/components/script/dom/htmltrackelement.rs
@@ -56,7 +56,7 @@ pub trait HTMLTrackElementMethods {
 
 impl<'a> HTMLTrackElementMethods for JSRef<'a, HTMLTrackElement> {
     fn Kind(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetKind(&mut self, _kind: DOMString) -> ErrorResult {
@@ -64,7 +64,7 @@ impl<'a> HTMLTrackElementMethods for JSRef<'a, HTMLTrackElement> {
     }
 
     fn Src(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSrc(&mut self, _src: DOMString) -> ErrorResult {
@@ -72,7 +72,7 @@ impl<'a> HTMLTrackElementMethods for JSRef<'a, HTMLTrackElement> {
     }
 
     fn Srclang(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSrclang(&mut self, _srclang: DOMString) -> ErrorResult {
@@ -80,7 +80,7 @@ impl<'a> HTMLTrackElementMethods for JSRef<'a, HTMLTrackElement> {
     }
 
     fn Label(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetLabel(&mut self, _label: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlulistelement.rs b/src/components/script/dom/htmlulistelement.rs
index a7e5738efd9..c61ec58d9a0 100644
--- a/src/components/script/dom/htmlulistelement.rs
+++ b/src/components/script/dom/htmlulistelement.rs
@@ -57,7 +57,7 @@ impl<'a> HTMLUListElementMethods for JSRef<'a, HTMLUListElement> {
     }
 
     fn Type(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetType(&mut self, _type: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/htmlvideoelement.rs b/src/components/script/dom/htmlvideoelement.rs
index eaa4e98eb06..ce20e0c1b13 100644
--- a/src/components/script/dom/htmlvideoelement.rs
+++ b/src/components/script/dom/htmlvideoelement.rs
@@ -77,7 +77,7 @@ impl<'a> HTMLVideoElementMethods for JSRef<'a, HTMLVideoElement> {
     }
 
     fn Poster(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPoster(&mut self, _poster: DOMString) -> ErrorResult {
diff --git a/src/components/script/dom/location.rs b/src/components/script/dom/location.rs
index 93485f0b264..c1d8d439bb8 100644
--- a/src/components/script/dom/location.rs
+++ b/src/components/script/dom/location.rs
@@ -85,11 +85,11 @@ impl<'a> LocationMethods for JSRef<'a, Location> {
     }
 
     fn Origin(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn Protocol(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetProtocol(&self, _protocol: DOMString) {
@@ -97,7 +97,7 @@ impl<'a> LocationMethods for JSRef<'a, Location> {
     }
 
     fn Username(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetUsername(&self, _username: DOMString) {
@@ -105,7 +105,7 @@ impl<'a> LocationMethods for JSRef<'a, Location> {
     }
 
     fn Password(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPassword(&self, _password: DOMString) {
@@ -113,7 +113,7 @@ impl<'a> LocationMethods for JSRef<'a, Location> {
     }
 
     fn Host(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHost(&self, _host: DOMString) {
@@ -121,7 +121,7 @@ impl<'a> LocationMethods for JSRef<'a, Location> {
     }
 
     fn Hostname(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHostname(&self, _hostname: DOMString) {
@@ -129,7 +129,7 @@ impl<'a> LocationMethods for JSRef<'a, Location> {
     }
 
     fn Port(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPort(&self, _port: DOMString) {
@@ -137,7 +137,7 @@ impl<'a> LocationMethods for JSRef<'a, Location> {
     }
 
     fn Pathname(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetPathname(&self, _pathname: DOMString) {
@@ -145,7 +145,7 @@ impl<'a> LocationMethods for JSRef<'a, Location> {
     }
 
     fn Search(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetSearch(&self, _search: DOMString) {
@@ -153,7 +153,7 @@ impl<'a> LocationMethods for JSRef<'a, Location> {
     }
 
     fn Hash(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetHash(&self, _hash: DOMString) {
diff --git a/src/components/script/dom/navigator.rs b/src/components/script/dom/navigator.rs
index ec72aef0ff2..05d0eb058e5 100644
--- a/src/components/script/dom/navigator.rs
+++ b/src/components/script/dom/navigator.rs
@@ -53,11 +53,11 @@ impl<'a> NavigatorMethods for JSRef<'a, Navigator> {
     }
 
     fn Vendor(&self) -> DOMString {
-        ~"" // Like Gecko
+        "".to_owned() // Like Gecko
     }
 
     fn VendorSub(&self) -> DOMString {
-        ~"" // Like Gecko
+        "".to_owned() // Like Gecko
     }
 
     fn Product(&self) -> DOMString {
@@ -65,7 +65,7 @@ impl<'a> NavigatorMethods for JSRef<'a, Navigator> {
     }
 
     fn ProductSub(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn CookieEnabled(&self) -> bool {
@@ -73,7 +73,7 @@ impl<'a> NavigatorMethods for JSRef<'a, Navigator> {
     }
 
     fn GetBuildID(&self) -> Fallible<DOMString> {
-        Ok(~"")
+        Ok("".to_owned())
     }
 
     fn JavaEnabled(&self) -> Fallible<bool> {
@@ -93,15 +93,15 @@ impl<'a> NavigatorMethods for JSRef<'a, Navigator> {
     }
 
     fn GetAppVersion(&self) -> Fallible<DOMString> {
-        Ok(~"")
+        Ok("".to_owned())
     }
 
     fn GetPlatform(&self) -> Fallible<DOMString> {
-        Ok(~"")
+        Ok("".to_owned())
     }
 
     fn GetUserAgent(&self) -> Fallible<DOMString> {
-        Ok(~"")
+        Ok("".to_owned())
     }
 
     fn GetLanguage(&self) -> Option<DOMString> {
diff --git a/src/components/script/dom/node.rs b/src/components/script/dom/node.rs
index e9a2d0ca37b..84d136536de 100644
--- a/src/components/script/dom/node.rs
+++ b/src/components/script/dom/node.rs
@@ -435,7 +435,7 @@ impl<'a> NodeHelpers for JSRef<'a, Node> {
 
     /// Dumps the node tree, for debugging, with indentation.
     fn dump_indent(&self, indent: uint) {
-        let mut s = ~"";
+        let mut s = "".to_owned();
         for _ in range(0, indent) {
             s.push_str("    ");
         }
@@ -1510,7 +1510,7 @@ impl<'a> NodeMethods for JSRef<'a, Node> {
         match self.type_id {
             DocumentFragmentNodeTypeId |
             ElementNodeTypeId(..) => {
-                let mut content = ~"";
+                let mut content = "".to_owned();
                 for node in self.traverse_preorder() {
                     if node.is_text() {
                         let text: &JSRef<Text> = TextCast::to_ref(&node).unwrap();
diff --git a/src/components/script/dom/testbinding.rs b/src/components/script/dom/testbinding.rs
index a860d1c3d0f..f003c1c6c34 100644
--- a/src/components/script/dom/testbinding.rs
+++ b/src/components/script/dom/testbinding.rs
@@ -225,7 +225,7 @@ impl<'a> TestBindingMethods for JSRef<'a, TestBinding> {
     fn SetFloatAttribute(&self, _: f32) {}
     fn DoubleAttribute(&self) -> f64 { 0. }
     fn SetDoubleAttribute(&self, _: f64) {}
-    fn StringAttribute(&self) -> DOMString { ~"" }
+    fn StringAttribute(&self) -> DOMString { "".to_owned() }
     fn SetStringAttribute(&self, _: DOMString) {}
     fn ByteStringAttribute(&self) -> ByteString { ByteString::new(vec!()) }
     fn SetByteStringAttribute(&self, _: ByteString) {}
@@ -263,7 +263,7 @@ 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(~"") }
+    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>> {
diff --git a/src/components/script/dom/text.rs b/src/components/script/dom/text.rs
index ac523808241..b8d7530fe58 100644
--- a/src/components/script/dom/text.rs
+++ b/src/components/script/dom/text.rs
@@ -57,6 +57,6 @@ impl<'a> TextMethods for JSRef<'a, Text> {
     }
 
     fn GetWholeText(&self) -> Fallible<DOMString> {
-        Ok(~"")
+        Ok("".to_owned())
     }
 }
diff --git a/src/components/script/dom/window.rs b/src/components/script/dom/window.rs
index 258a85b1455..de67d08a112 100644
--- a/src/components/script/dom/window.rs
+++ b/src/components/script/dom/window.rs
@@ -150,14 +150,14 @@ impl<'a> WindowMethods for JSRef<'a, Window> {
     }
 
     fn Name(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetName(&self, _name: DOMString) {
     }
 
     fn Status(&self) -> DOMString {
-        ~""
+        "".to_owned()
     }
 
     fn SetStatus(&self, _status: DOMString) {
diff --git a/src/components/script/dom/xmlhttprequest.rs b/src/components/script/dom/xmlhttprequest.rs
index 5543f508315..1fe615ff3e4 100644
--- a/src/components/script/dom/xmlhttprequest.rs
+++ b/src/components/script/dom/xmlhttprequest.rs
@@ -48,11 +48,11 @@ impl XMLHttpRequest {
             timeout: 0u32,
             with_credentials: false,
             upload: None,
-            response_url: ~"",
+            response_url: "".to_owned(),
             status: 0,
             status_text: ByteString::new(vec!()),
             response_type: _empty,
-            response_text: ~"",
+            response_text: "".to_owned(),
             response_xml: None
         };
         xhr.upload.assign(Some(XMLHttpRequestUpload::new(owner)));