Move blink scheduler implementation into a component

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_renderer_scheduler.h b/content/renderer/scheduler/webthread_impl_for_renderer_scheduler.h
index 6d1af5ad780905c9194bb2f3b2c8d21867626a7f..f98eab2cdf7ac6f575e5aeca0dc8778fa99a4a63 100644
--- a/content/renderer/scheduler/webthread_impl_for_renderer_scheduler.h
+++ b/content/renderer/scheduler/webthread_impl_for_renderer_scheduler.h
@@ -12,14 +12,17 @@ namespace blink {
 class WebScheduler;
 };
 
-namespace content {
-
+namespace scheduler {
 class RendererScheduler;
 class WebSchedulerImpl;
+}
+
+namespace content {
 
 class CONTENT_EXPORT WebThreadImplForRendererScheduler : public WebThreadBase {
  public:
-  explicit WebThreadImplForRendererScheduler(RendererScheduler* scheduler);
+  explicit WebThreadImplForRendererScheduler(
+      scheduler::RendererScheduler* scheduler);
   virtual ~WebThreadImplForRendererScheduler();
 
   // blink::WebThread implementation.
@@ -28,7 +31,7 @@ class CONTENT_EXPORT WebThreadImplForRendererScheduler : public WebThreadBase {
 
   // WebThreadBase implementation.
   base::SingleThreadTaskRunner* TaskRunner() const override;
-  SingleThreadIdleTaskRunner* IdleTaskRunner() const override;
+  scheduler::SingleThreadIdleTaskRunner* IdleTaskRunner() const override;
 
  private:
   base::MessageLoop* MessageLoop() const override;
@@ -37,10 +40,10 @@ class CONTENT_EXPORT WebThreadImplForRendererScheduler : public WebThreadBase {
   void RemoveTaskObserverInternal(
       base::MessageLoop::TaskObserver* observer) override;
 
-  scoped_ptr<WebSchedulerImpl> web_scheduler_;
+  scoped_ptr<scheduler::WebSchedulerImpl> web_scheduler_;
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-  scoped_refptr<SingleThreadIdleTaskRunner> idle_task_runner_;
-  RendererScheduler* scheduler_;  // Not owned.
+  scoped_refptr<scheduler::SingleThreadIdleTaskRunner> idle_task_runner_;
+  scheduler::RendererScheduler* scheduler_;  // Not owned.
   blink::PlatformThreadId thread_id_;
 };