scheduler: Move the Blink scheduler into Blink

content/child/blink_platform_impl.h

Index: content/child/blink_platform_impl.h
diff --git a/content/child/blink_platform_impl.h b/content/child/blink_platform_impl.h
index 2c15044e195fc5c8b4d9ce4077c7a6d9839f1873..476dcd538f6583b8f8232aa9dd4a68a3df2cf0c8 100644
--- a/content/child/blink_platform_impl.h
+++ b/content/child/blink_platform_impl.h
@@ -37,9 +37,11 @@ class MessageLoop;
 class WaitableEvent;
 }
 
+namespace blink {
 namespace scheduler {
 class WebThreadBase;
 }
+}
 
 namespace content {
 class BackgroundSyncProvider;
@@ -138,11 +140,11 @@ class CONTENT_EXPORT BlinkPlatformImpl
   // This class does *not* own the compositor thread. It is the responsibility
   // of the caller to ensure that the compositor thread is cleared before it is
   // destructed.
-  void SetCompositorThread(scheduler::WebThreadBase* compositor_thread);
+  void SetCompositorThread(blink::scheduler::WebThreadBase* compositor_thread);
 
  private:
   void InternalInit();
-  void WaitUntilWebThreadTLSUpdate(scheduler::WebThreadBase* thread);
+  void WaitUntilWebThreadTLSUpdate(blink::scheduler::WebThreadBase* thread);
   void UpdateWebThreadTLS(blink::WebThread* thread, base::WaitableEvent* event);
 
   bool IsMainThread() const;
@@ -162,7 +164,7 @@ class CONTENT_EXPORT BlinkPlatformImpl
   std::unique_ptr<PermissionDispatcher> permission_client_;
   std::unique_ptr<BackgroundSyncProvider> main_thread_sync_provider_;
 
-  scheduler::WebThreadBase* compositor_thread_;
+  blink::scheduler::WebThreadBase* compositor_thread_;
 };
 
 }  // namespace content