Remove unused function LinkLoaderClient::GetLoadingTaskRunner()

Change-Id: I17c4d685424842fec48061edf866758741d4a7d9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3553685
Auto-Submit: Xiaocheng Hu <xiaochengh@chromium.org>
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Reviewed-by: Joey Arhar <jarhar@chromium.org>
Commit-Queue: Joey Arhar <jarhar@chromium.org>
Cr-Commit-Position: refs/heads/main@{#988223}

third_party/blink/renderer/core/html/html_link_element.cc

@@ -334,11 +334,6 @@ void HTMLLinkElement::LinkLoadingErrored() {
   DispatchEvent(*Event::Create(event_type_names::kError));
 }
 
-scoped_refptr<base::SingleThreadTaskRunner>
-HTMLLinkElement::GetLoadingTaskRunner() {
-  return GetDocument().GetTaskRunner(TaskType::kNetworking);
-}
-
 bool HTMLLinkElement::SheetLoaded() {
   DCHECK(GetLinkStyle());
   return GetLinkStyle()->SheetLoaded();

third_party/blink/renderer/core/html/html_link_element.h

@@ -157,7 +157,6 @@ class CORE_EXPORT HTMLLinkElement final : public HTMLElement,
   // From LinkLoaderClient
   void LinkLoaded() override;
   void LinkLoadingErrored() override;
-  scoped_refptr<base::SingleThreadTaskRunner> GetLoadingTaskRunner() override;
 
   Member<LinkResource> link_;
   Member<LinkLoader> link_loader_;

third_party/blink/renderer/core/loader/link_loader_client.h

@@ -50,10 +50,6 @@ class CORE_EXPORT LinkLoaderClient : public GarbageCollectedMixin {
   // There is no notification for cancellation.
 
   virtual bool IsLinkCreatedByParser() = 0;
-
-  // TODO(xiaochengh): Remove this unused function.
-  virtual scoped_refptr<base::SingleThreadTaskRunner>
-  GetLoadingTaskRunner() = 0;
 };
 
 }  // namespace blink

third_party/blink/renderer/core/loader/link_loader_test.cc

@@ -53,10 +53,6 @@ class MockLinkLoaderClient final
   void LinkLoaded() override {}
   void LinkLoadingErrored() override {}
 
-  scoped_refptr<base::SingleThreadTaskRunner> GetLoadingTaskRunner() override {
-    return Thread::Current()->GetTaskRunner();
-  }
-
  private:
   const bool should_load_;
 };