fix redundant closures in component/script/dom (#31917)

* fixed unnecessary conversions

* resolved conflicts

* resolved conflicts

* fix redundant closures in component/script/dom

* resolved conflicts

* fixed formatting

26 files changed, 35 insertions, 44 deletions

diff --git a/components/script/dom/blob.rs b/components/script/dom/blob.rs
index 6f63abf85e4..5d55bec0afc 100644
--- a/components/script/dom/blob.rs
+++ b/components/script/dom/blob.rs
@@ -181,7 +181,7 @@ impl Serializable for Blob {
 
         let deserialized_blob = Blob::new(owner, blob_impl);
 
-        let blobs = blobs.get_or_insert_with(|| HashMap::new());
+        let blobs = blobs.get_or_insert_with(HashMap::new);
         blobs.insert(storage_key, deserialized_blob);
 
         Ok(())
diff --git a/components/script/dom/bluetoothremotegattserver.rs b/components/script/dom/bluetoothremotegattserver.rs
index 0ed7844f732..65c7d9ae20d 100644
--- a/components/script/dom/bluetoothremotegattserver.rs
+++ b/components/script/dom/bluetoothremotegattserver.rs
@@ -146,7 +146,7 @@ impl AsyncBluetoothListener for BluetoothRemoteGATTServer {
                 // Step 5.2.3
                 if self.Device().is_represented_device_null() {
                     if let Err(e) = self.Device().garbage_collect_the_connection() {
-                        return promise.reject_error(Error::from(e));
+                        return promise.reject_error(e);
                     }
                     return promise.reject_error(Error::Network);
                 }
diff --git a/components/script/dom/console.rs b/components/script/dom/console.rs
index bb9d7822229..da9bc8e88da 100644
--- a/components/script/dom/console.rs
+++ b/components/script/dom/console.rs
@@ -96,7 +96,7 @@ fn stringify_handle_value(message: HandleValue) -> DOMString {
             let mut ids = IdVector::new(cx);
             if !GetPropertyKeys(
                 cx,
-                obj.handle().into(),
+                obj.handle(),
                 jsapi::JSITER_OWNONLY | jsapi::JSITER_SYMBOLS,
                 ids.handle_mut(),
             ) {
diff --git a/components/script/dom/dedicatedworkerglobalscope.rs b/components/script/dom/dedicatedworkerglobalscope.rs
index d9a5d3abcd6..3f90990dba1 100644
--- a/components/script/dom/dedicatedworkerglobalscope.rs
+++ b/components/script/dom/dedicatedworkerglobalscope.rs
@@ -357,9 +357,7 @@ impl DedicatedWorkerGlobalScope {
                     pipeline_id,
                 } = worker_load_origin;
 
-                let referrer = referrer_url
-                    .map(|url| Referrer::ReferrerUrl(url))
-                    .unwrap_or(referrer);
+                let referrer = referrer_url.map(Referrer::ReferrerUrl).unwrap_or(referrer);
 
                 let request = RequestBuilder::new(worker_url.clone(), referrer)
                     .destination(Destination::Worker)
diff --git a/components/script/dom/element.rs b/components/script/dom/element.rs
index 5f8848196a6..033bc49e353 100644
--- a/components/script/dom/element.rs
+++ b/components/script/dom/element.rs
@@ -710,10 +710,12 @@ impl<'dom> LayoutElementHelpers<'dom> for LayoutDom<'dom, Element> {
             use cssparser::FromParsedColor;
             hints.push(from_declaration(
                 shared_lock,
-                PropertyDeclaration::BackgroundColor(
-                    specified::Color::from_rgba(color.red, color.green, color.blue, color.alpha)
-                        .into(),
-                ),
+                PropertyDeclaration::BackgroundColor(specified::Color::from_rgba(
+                    color.red,
+                    color.green,
+                    color.blue,
+                    color.alpha,
+                )),
             ));
         }
 
@@ -749,8 +751,7 @@ impl<'dom> LayoutElementHelpers<'dom> for LayoutDom<'dom, Element> {
             hints.push(from_declaration(
                 shared_lock,
                 PropertyDeclaration::Color(longhands::color::SpecifiedValue(
-                    specified::Color::from_rgba(color.red, color.green, color.blue, color.alpha)
-                        .into(),
+                    specified::Color::from_rgba(color.red, color.green, color.blue, color.alpha),
                 )),
             ));
         }
diff --git a/components/script/dom/globalscope.rs b/components/script/dom/globalscope.rs
index 2b02a1eae82..8ddcd133cf8 100644
--- a/components/script/dom/globalscope.rs
+++ b/components/script/dom/globalscope.rs
@@ -962,7 +962,7 @@ impl GlobalScope {
         self.list_auto_close_worker
             .borrow_mut()
             .drain(0..)
-            .for_each(|worker| drop(worker));
+            .for_each(drop);
     }
 
     /// Update our state to un-managed,
diff --git a/components/script/dom/gpudevice.rs b/components/script/dom/gpudevice.rs
index 06de48c166d..bc47b1bdfda 100644
--- a/components/script/dom/gpudevice.rs
+++ b/components/script/dom/gpudevice.rs
@@ -866,7 +866,7 @@ impl GPUDeviceMethods for GPUDevice {
             mipmap_filter: convert_filter_mode(descriptor.mipmapFilter),
             lod_min_clamp: *descriptor.lodMinClamp,
             lod_max_clamp: *descriptor.lodMaxClamp,
-            compare: descriptor.compare.map(|c| convert_compare_function(c)),
+            compare: descriptor.compare.map(convert_compare_function),
             anisotropy_clamp: 1,
             border_color: None,
         };
diff --git a/components/script/dom/headers.rs b/components/script/dom/headers.rs
index 0634d205574..25349d83a9c 100644
--- a/components/script/dom/headers.rs
+++ b/components/script/dom/headers.rs
@@ -165,7 +165,7 @@ impl HeadersMethods for Headers {
         let valid_name = validate_name(name)?;
         Ok(
             get_value_from_header_list(&valid_name, &self.header_list.borrow())
-                .map(|v| ByteString::new(v)),
+                .map(ByteString::new),
         )
     }
 
diff --git a/components/script/dom/htmlformelement.rs b/components/script/dom/htmlformelement.rs
index 307fbb78cd0..4e81a8bb709 100644
--- a/components/script/dom/htmlformelement.rs
+++ b/components/script/dom/htmlformelement.rs
@@ -737,7 +737,7 @@ impl HTMLFormElement {
                 atom!("submit"),
                 true,
                 true,
-                submitter_button.map(|s| DomRoot::from_ref(s)),
+                submitter_button.map(DomRoot::from_ref),
             );
             let event = event.upcast::<Event>();
             event.fire(self.upcast::<EventTarget>());
diff --git a/components/script/dom/htmlinputelement.rs b/components/script/dom/htmlinputelement.rs
index bb57b065fec..64506db9757 100755
--- a/components/script/dom/htmlinputelement.rs
+++ b/components/script/dom/htmlinputelement.rs
@@ -1642,7 +1642,7 @@ fn radio_group_iter<'a>(
 
     // If group is None, in_same_group always fails, but we need to always return elem.
     root.traverse_preorder(ShadowIncluding::No)
-        .filter_map(|r| DomRoot::downcast::<HTMLInputElement>(r))
+        .filter_map(DomRoot::downcast::<HTMLInputElement>)
         .filter(move |r| &**r == elem || in_same_group(r, owner.as_deref(), group, None))
 }
 
diff --git a/components/script/dom/htmlselectelement.rs b/components/script/dom/htmlselectelement.rs
index ce90c443593..61f7768e1f7 100755
--- a/components/script/dom/htmlselectelement.rs
+++ b/components/script/dom/htmlselectelement.rs
@@ -310,7 +310,7 @@ impl HTMLSelectElementMethods for HTMLSelectElement {
     fn NamedItem(&self, name: DOMString) -> Option<DomRoot<HTMLOptionElement>> {
         self.Options()
             .NamedGetter(name)
-            .map_or(None, |e| DomRoot::downcast::<HTMLOptionElement>(e))
+            .map_or(None, DomRoot::downcast::<HTMLOptionElement>)
     }
 
     // https://html.spec.whatwg.org/multipage/#dom-select-remove
diff --git a/components/script/dom/paintworkletglobalscope.rs b/components/script/dom/paintworkletglobalscope.rs
index e1c05a77b5b..4046ef456ed 100644
--- a/components/script/dom/paintworkletglobalscope.rs
+++ b/components/script/dom/paintworkletglobalscope.rs
@@ -425,7 +425,7 @@ impl PaintWorkletGlobalScope {
 
                 receiver
                     .recv_timeout(Duration::from_millis(timeout))
-                    .map_err(|e| PaintWorkletError::from(e))
+                    .map_err(PaintWorkletError::from)
             }
         }
         Box::new(WorkletPainter {
diff --git a/components/script/dom/performanceentry.rs b/components/script/dom/performanceentry.rs
index 2056a8daf99..1624a7f15fa 100644
--- a/components/script/dom/performanceentry.rs
+++ b/components/script/dom/performanceentry.rs
@@ -69,12 +69,12 @@ impl PerformanceEntry {
 impl PerformanceEntryMethods for PerformanceEntry {
     // https://w3c.github.io/performance-timeline/#dom-performanceentry-name
     fn Name(&self) -> DOMString {
-        DOMString::from(self.name.clone())
+        self.name.clone()
     }
 
     // https://w3c.github.io/performance-timeline/#dom-performanceentry-entrytype
     fn EntryType(&self) -> DOMString {
-        DOMString::from(self.entry_type.clone())
+        self.entry_type.clone()
     }
 
     // https://w3c.github.io/performance-timeline/#dom-performanceentry-starttime
diff --git a/components/script/dom/performanceresourcetiming.rs b/components/script/dom/performanceresourcetiming.rs
index eb131eb1286..3afaef5f912 100644
--- a/components/script/dom/performanceresourcetiming.rs
+++ b/components/script/dom/performanceresourcetiming.rs
@@ -173,7 +173,7 @@ impl PerformanceResourceTimingMethods for PerformanceResourceTiming {
     // when a proxy is configured
     fn NextHopProtocol(&self) -> DOMString {
         match self.next_hop {
-            Some(ref protocol) => DOMString::from(protocol.clone()),
+            Some(ref protocol) => protocol.clone(),
             None => DOMString::from(""),
         }
     }
diff --git a/components/script/dom/response.rs b/components/script/dom/response.rs
index 9b35d28662e..c199216c53c 100644
--- a/components/script/dom/response.rs
+++ b/components/script/dom/response.rs
@@ -276,7 +276,7 @@ impl ResponseMethods for Response {
         USVString(String::from(
             (*self.url.borrow())
                 .as_ref()
-                .map(|u| serialize_without_fragment(u))
+                .map(serialize_without_fragment)
                 .unwrap_or(""),
         ))
     }
diff --git a/components/script/dom/serviceworkerglobalscope.rs b/components/script/dom/serviceworkerglobalscope.rs
index 1b56c5ccc86..dbf792f62a0 100644
--- a/components/script/dom/serviceworkerglobalscope.rs
+++ b/components/script/dom/serviceworkerglobalscope.rs
@@ -349,7 +349,7 @@ impl ServiceWorkerGlobalScope {
                 let scope = global.upcast::<WorkerGlobalScope>();
 
                 let referrer = referrer_url
-                    .map(|url| Referrer::ReferrerUrl(url))
+                    .map(Referrer::ReferrerUrl)
                     .unwrap_or_else(|| global.upcast::<GlobalScope>().get_referrer());
 
                 let request = RequestBuilder::new(script_url, referrer)
diff --git a/components/script/dom/servoparser/async_html.rs b/components/script/dom/servoparser/async_html.rs
index a0c1584eba3..9379beb572e 100644
--- a/components/script/dom/servoparser/async_html.rs
+++ b/components/script/dom/servoparser/async_html.rs
@@ -458,7 +458,7 @@ impl Tokenizer {
                 system_id,
             } => {
                 let doctype = DocumentType::new(
-                    DOMString::from(String::from(name)),
+                    DOMString::from(name),
                     Some(DOMString::from(public_id)),
                     Some(DOMString::from(system_id)),
                     document,
diff --git a/components/script/dom/servoparser/html.rs b/components/script/dom/servoparser/html.rs
index 8bef76d2ed9..0d1846b6f1e 100644
--- a/components/script/dom/servoparser/html.rs
+++ b/components/script/dom/servoparser/html.rs
@@ -61,7 +61,7 @@ impl Tokenizer {
             let tb = TreeBuilder::new_for_fragment(
                 sink,
                 Dom::from_ref(fc.context_elem),
-                fc.form_elem.map(|n| Dom::from_ref(n)),
+                fc.form_elem.map(Dom::from_ref),
                 options,
             );
 
diff --git a/components/script/dom/storageevent.rs b/components/script/dom/storageevent.rs
index eb17166d395..71ea9b17005 100644
--- a/components/script/dom/storageevent.rs
+++ b/components/script/dom/storageevent.rs
@@ -192,11 +192,8 @@ impl StorageEventMethods for StorageEvent {
         url: USVString,
         storageArea: Option<&Storage>,
     ) {
-        self.event.init_event(
-            Atom::from(type_),
-            bool::from(bubbles),
-            bool::from(cancelable),
-        );
+        self.event
+            .init_event(Atom::from(type_), bubbles, cancelable);
         *self.key.borrow_mut() = key;
         *self.old_value.borrow_mut() = oldValue;
         *self.new_value.borrow_mut() = newValue;
diff --git a/components/script/dom/testrunner.rs b/components/script/dom/testrunner.rs
index 6d9a68c9db4..9efd6673502 100644
--- a/components/script/dom/testrunner.rs
+++ b/components/script/dom/testrunner.rs
@@ -44,7 +44,7 @@ impl TestRunnerMethods for TestRunner {
         self.get_bluetooth_thread()
             .send(BluetoothRequest::Test(String::from(dataSetName), sender))
             .unwrap();
-        match receiver.recv().unwrap().into() {
+        match receiver.recv().unwrap() {
             Ok(()) => Ok(()),
             Err(error) => Err(Error::from(error)),
         }
diff --git a/components/script/dom/textcontrol.rs b/components/script/dom/textcontrol.rs
index e4f8546a721..7f0fc3dc11e 100644
--- a/components/script/dom/textcontrol.rs
+++ b/components/script/dom/textcontrol.rs
@@ -143,7 +143,7 @@ impl<'a, E: TextControlElement> TextControlSelection<'a, E> {
         self.set_range(
             Some(start),
             Some(end),
-            direction.map(|d| SelectionDirection::from(d)),
+            direction.map(SelectionDirection::from),
             None,
         );
         Ok(())
diff --git a/components/script/dom/texttrack.rs b/components/script/dom/texttrack.rs
index d9c6c320955..e0263e5ee1a 100644
--- a/components/script/dom/texttrack.rs
+++ b/components/script/dom/texttrack.rs
@@ -49,7 +49,7 @@ impl TextTrack {
             id: id.into(),
             mode: Cell::new(mode),
             cue_list: Default::default(),
-            track_list: DomRefCell::new(track_list.map(|t| Dom::from_ref(t))),
+            track_list: DomRefCell::new(track_list.map(Dom::from_ref)),
         }
     }
 
diff --git a/components/script/dom/vttcue.rs b/components/script/dom/vttcue.rs
index a4740fd3e30..016b398a263 100644
--- a/components/script/dom/vttcue.rs
+++ b/components/script/dom/vttcue.rs
@@ -97,7 +97,7 @@ impl VTTCueMethods for VTTCue {
 
     // https://w3c.github.io/webvtt/#dom-vttcue-region
     fn SetRegion(&self, value: Option<&VTTRegion>) {
-        *self.region.borrow_mut() = value.map(|r| Dom::from_ref(r))
+        *self.region.borrow_mut() = value.map(Dom::from_ref)
     }
 
     // https://w3c.github.io/webvtt/#dom-vttcue-vertical
diff --git a/components/script/dom/xmlhttprequest.rs b/components/script/dom/xmlhttprequest.rs
index c7ed203f996..528e531c496 100644
--- a/components/script/dom/xmlhttprequest.rs
+++ b/components/script/dom/xmlhttprequest.rs
@@ -983,14 +983,14 @@ impl XMLHttpRequestMethods for XMLHttpRequest {
     fn GetResponseText(&self) -> Fallible<USVString> {
         match self.response_type.get() {
             XMLHttpRequestResponseType::_empty | XMLHttpRequestResponseType::Text => {
-                Ok(USVString(String::from(match self.ready_state.get() {
+                Ok(USVString(match self.ready_state.get() {
                     // Step 3
                     XMLHttpRequestState::Loading | XMLHttpRequestState::Done => {
                         self.text_response()
                     },
                     // Step 2
                     _ => "".to_owned(),
-                })))
+                }))
             },
             // Step 1
             _ => Err(Error::InvalidState),
diff --git a/components/script/dom/xrrenderstate.rs b/components/script/dom/xrrenderstate.rs
index 44550ea3ca0..835f78aa7a4 100644
--- a/components/script/dom/xrrenderstate.rs
+++ b/components/script/dom/xrrenderstate.rs
@@ -44,12 +44,7 @@ impl XRRenderState {
             depth_far: Cell::new(depth_far),
             inline_vertical_fov: Cell::new(inline_vertical_fov),
             base_layer: MutNullableDom::new(layer),
-            layers: DomRefCell::new(
-                layers
-                    .into_iter()
-                    .map(|layer| Dom::from_ref(layer))
-                    .collect(),
-            ),
+            layers: DomRefCell::new(layers.into_iter().map(Dom::from_ref).collect()),
         }
     }
 
diff --git a/components/script/dom/xrsession.rs b/components/script/dom/xrsession.rs
index b5015e7f374..4c5945e4374 100644
--- a/components/script/dom/xrsession.rs
+++ b/components/script/dom/xrsession.rs
@@ -441,7 +441,7 @@ impl XRSession {
             let callback = self.current_raf_callback_list.borrow()[i]
                 .1
                 .as_ref()
-                .map(|callback| Rc::clone(callback));
+                .map(Rc::clone);
             if let Some(callback) = callback {
                 let _ = callback.Call__(time, &frame, ExceptionHandling::Report);
             }