Decouple BrowserCompositorOutputSurface from BeginFrameSource.

content/browser/renderer_host/delegated_frame_host.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 CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_HOST_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 63 matching lines @@
   virtual void SetBeginFrameSource(cc::BeginFrameSource* source) = 0;
   virtual bool IsAutoResizeEnabled() const = 0;
 };
 
 // The DelegatedFrameHost is used to host all of the RenderWidgetHostView state
 // and functionality that is associated with delegated frames being sent from
 // the RenderWidget. The DelegatedFrameHost will push these changes through to
 // the ui::Compositor associated with its DelegatedFrameHostClient.
 class CONTENT_EXPORT DelegatedFrameHost
     : public ui::CompositorObserver,
-      public ui::CompositorVSyncManager::Observer,
+      public cc::VSyncObserver,
       public ui::ContextFactoryObserver,
       public DelegatedFrameEvictorClient,
       public cc::SurfaceFactoryClient,
       public base::SupportsWeakPtr<DelegatedFrameHost> {
  public:
   DelegatedFrameHost(const cc::FrameSinkId& frame_sink_id,
                      DelegatedFrameHostClient* client);
   ~DelegatedFrameHost() override;
 
   // ui::CompositorObserver implementation.
   void OnCompositingDidCommit(ui::Compositor* compositor) override;
   void OnCompositingStarted(ui::Compositor* compositor,
                             base::TimeTicks start_time) override;
   void OnCompositingEnded(ui::Compositor* compositor) override;
   void OnCompositingLockStateChanged(ui::Compositor* compositor) override;
   void OnCompositingShuttingDown(ui::Compositor* compositor) override;
 
-  // ui::CompositorVSyncManager::Observer implementation.
+  // cc::VSyncObserver implementation.
   void OnUpdateVSyncParameters(base::TimeTicks timebase,
                                base::TimeDelta interval) override;
 
   // ImageTransportFactoryObserver implementation.
   void OnLostResources() override;
 
   // DelegatedFrameEvictorClient implementation.
   void EvictDelegatedFrame() override;
 
   // cc::SurfaceFactoryClient implementation.
@@ skipping 217 matching lines @@
   // YUV readback pipeline.
   std::unique_ptr<display_compositor::ReadbackYUVInterface>
       yuv_readback_pipeline_;
 
   std::unique_ptr<DelegatedFrameEvictor> delegated_frame_evictor_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_HOST_H_