WebTaskRunnerImpl to take a TaskQueue

components/scheduler/renderer/renderer_scheduler.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_
 #define COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_
 
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "components/scheduler/child/child_scheduler.h"
@@ skipping 13 matching lines @@
 namespace scheduler {
 
 class RenderWidgetSchedulingState;
 
 class SCHEDULER_EXPORT RendererScheduler : public ChildScheduler {
  public:
   ~RendererScheduler() override;
   static scoped_ptr<RendererScheduler> Create();
 
   // Returns the compositor task runner.
-  virtual scoped_refptr<base::SingleThreadTaskRunner>
-  CompositorTaskRunner() = 0;
+  virtual scoped_refptr<TaskQueue> CompositorTaskRunner() = 0;
 
   // Keep RendererScheduler::UseCaseToString in sync with this enum.
   enum class UseCase {
     NONE,
     COMPOSITOR_GESTURE,
     MAIN_THREAD_GESTURE,
     SYNCHRONIZED_GESTURE,  // Both threads in the critical path.
     TOUCHSTART,
     LOADING,
     // Must be the last entry.
     USE_CASE_COUNT,
     FIRST_USE_CASE = NONE,
   };
   static const char* UseCaseToString(UseCase use_case);
 
   // Creates a WebThread implementation for the renderer main thread.
   virtual scoped_ptr<blink::WebThread> CreateMainThread() = 0;
 
   // Returns the loading task runner.  This queue is intended for tasks related
   // to resource dispatch, foreground HTML parsing, etc...
-  virtual scoped_refptr<base::SingleThreadTaskRunner> LoadingTaskRunner() = 0;
+  virtual scoped_refptr<TaskQueue> LoadingTaskRunner() = 0;
 
   // Returns the timer task runner.  This queue is intended for DOM Timers.
   // TODO(alexclarke): Get rid of this default timer queue.
   virtual scoped_refptr<TaskQueue> TimerTaskRunner() = 0;
 
   // Returns a new loading task runner. This queue is intended for tasks related
   // to resource dispatch, foreground HTML parsing, etc...
   virtual scoped_refptr<TaskQueue> NewLoadingTaskRunner(const char* name) = 0;
 
   // Returns a new timer task runner. This queue is intended for DOM Timers.
@@ skipping 98 matching lines @@
   virtual double MonotonicallyIncreasingVirtualTimeSeconds() const = 0;
 
  protected:
   RendererScheduler();
   DISALLOW_COPY_AND_ASSIGN(RendererScheduler);
 };
 
 }  // namespace scheduler
 
 #endif  // COMPONENTS_SCHEDULER_RENDERER_RENDERER_SCHEDULER_H_