WebTaskRunnerImpl to take a TaskQueue

components/scheduler/renderer/renderer_scheduler.h

Index: components/scheduler/renderer/renderer_scheduler.h
diff --git a/components/scheduler/renderer/renderer_scheduler.h b/components/scheduler/renderer/renderer_scheduler.h
index 1360a553b05d8d1c91507514a246f9be775553ff..9f9204f111cb8b4dc33d8ea73162fb8488ce4991 100644
--- a/components/scheduler/renderer/renderer_scheduler.h
+++ b/components/scheduler/renderer/renderer_scheduler.h
@@ -31,8 +31,7 @@ class SCHEDULER_EXPORT RendererScheduler : public ChildScheduler {
   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 {
@@ -53,7 +52,7 @@ class SCHEDULER_EXPORT RendererScheduler : public ChildScheduler {
 
   // 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.