Schedule bitmap animation timers on the compositor task runner.

third_party/WebKit/Source/core/loader/resource/ImageResource.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
@@ skipping 40 matching lines @@
 // document:
 // https://docs.google.com/document/d/1v0yTAZ6wkqX2U_M6BNIGUJpM1s0TIw1VsqpxoL7aciY/edit?usp=sharing
 class CORE_EXPORT ImageResource final
     : public Resource,
       public MultipartImageResourceParser::Client {
   USING_GARBAGE_COLLECTED_MIXIN(ImageResource);
 
  public:
   using ClientType = ResourceClient;
 
-  // Use ImageResourceContent::fetch() unless ImageResource is required.
-  // TODO(hiroshige): Make fetch() private.
-  static ImageResource* Fetch(FetchParameters&, ResourceFetcher*);
+  // Use ImageResourceContent::Fetch() unless ImageResource is required.
+  // TODO(hiroshige): Make Fetch() private.
+  static ImageResource* Fetch(RefPtr<WebTaskRunner>,
+                              FetchParameters&,
+                              ResourceFetcher*);
 
-  // TODO(hiroshige): Make create() test-only by refactoring ImageDocument.
-  static ImageResource* Create(const ResourceRequest&);
+  // TODO(hiroshige): Make Create() test-only by refactoring ImageDocument.
+  static ImageResource* Create(RefPtr<WebTaskRunner>, const ResourceRequest&);
 
   ~ImageResource() override;
 
   ImageResourceContent* GetContent();
   const ImageResourceContent* GetContent() const;
 
   void ReloadIfLoFiOrPlaceholderImage(ResourceFetcher*,
                                       ReloadLoFiOrPlaceholderPolicy);
 
   void DidAddClient(ResourceClient*) override;
@@ skipping 27 matching lines @@
  private:
   enum class MultipartParsingState : uint8_t {
     kWaitingForFirstPart,
     kParsingFirstPart,
     kFinishedParsingFirstPart,
   };
 
   class ImageResourceInfoImpl;
   class ImageResourceFactory;
 
-  ImageResource(const ResourceRequest&,
+  ImageResource(RefPtr<WebTaskRunner>,
+                const ResourceRequest&,
                 const ResourceLoaderOptions&,
                 ImageResourceContent*,
                 bool is_placeholder);
 
   // Only for ImageResourceInfoImpl.
   void DecodeError(bool all_data_received);
   bool IsAccessAllowed(
       SecurityOrigin*,
       ImageResourceInfo::DoesCurrentFrameHaveSingleSecurityOrigin) const;
 
@@ skipping 38 matching lines @@
     // Do not show placeholder, reload only when decode error occurs.
     kReloadPlaceholderOnDecodeError,
 
     // Show placeholder and reload.
     kShowAndReloadPlaceholderAlways,
   };
   PlaceholderOption placeholder_option_;
 
   Timer<ImageResource> flush_timer_;
   double last_flush_time_ = 0.;
+  RefPtr<WebTaskRunner> task_runner_;
 };
 
 DEFINE_RESOURCE_TYPE_CASTS(Image);
 
 }  // namespace blink
 
 #endif