Add a WorkerScheduler and a WebThreadImplForWorker

content/renderer/scheduler/webthread_impl_for_renderer_scheduler.h

Index: content/renderer/scheduler/webthread_impl_for_renderer_scheduler.h
diff --git a/content/renderer/scheduler/webthread_impl_for_scheduler.h b/content/renderer/scheduler/webthread_impl_for_renderer_scheduler.h
similarity index 62%
rename from content/renderer/scheduler/webthread_impl_for_scheduler.h
rename to content/renderer/scheduler/webthread_impl_for_renderer_scheduler.h
index 36bd2e2a2e7f004a57c273c180520b7b36e65522..c429513bcfcf9933174334072b33ff5cada6c0ba 100644
--- a/content/renderer/scheduler/webthread_impl_for_scheduler.h
+++ b/content/renderer/scheduler/webthread_impl_for_renderer_scheduler.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CONTENT_RENDERER_SCHEDULER_WEBTHREAD_IMPL_FOR_SCHEDULER_H_
-#define CONTENT_RENDERER_SCHEDULER_WEBTHREAD_IMPL_FOR_SCHEDULER_H_
+#ifndef CONTENT_RENDERER_SCHEDULER_WEBTHREAD_IMPL_FOR_RENDERER_SCHEDULER_H_
+#define CONTENT_RENDERER_SCHEDULER_WEBTHREAD_IMPL_FOR_RENDERER_SCHEDULER_H_
 
 #include "content/child/webthread_impl.h"
 
@@ -13,16 +13,17 @@ namespace content {
 
 class RendererScheduler;
 
-class CONTENT_EXPORT WebThreadImplForScheduler : public WebThreadBase {
+class CONTENT_EXPORT WebThreadImplForRendererScheduler : public WebThreadBase {
  public:
-  explicit WebThreadImplForScheduler(RendererScheduler* scheduler);
-  virtual ~WebThreadImplForScheduler();
+  explicit WebThreadImplForRendererScheduler(RendererScheduler* scheduler);
+  virtual ~WebThreadImplForRendererScheduler();
 
   // blink::WebThread implementation.
   blink::PlatformThreadId threadId() const override;
 
   // WebThreadBase implementation.
   base::SingleThreadTaskRunner* TaskRunner() const override;
+  SingleThreadIdleTaskRunner* IdleTaskRunner() const override;
 
  private:
   base::MessageLoop* MessageLoop() const override;
@@ -32,10 +33,11 @@ class CONTENT_EXPORT WebThreadImplForScheduler : public WebThreadBase {
       base::MessageLoop::TaskObserver* observer) override;
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
+  scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_;
   RendererScheduler* scheduler_;  // Not owned.
   blink::PlatformThreadId thread_id_;
 };
 
 }  // namespace content
 
-#endif  // CONTENT_RENDERER_SCHEDULER_WEBTHREAD_IMPL_FOR_SCHEDULER_H_
+#endif  // CONTENT_RENDERER_SCHEDULER_WEBTHREAD_IMPL_FOR_RENDERER_SCHEDULER_H_