cc: Make separate interface for BeginFrame ipc from OutputSurface

content/renderer/android/synchronous_compositor_factory.h

 // Copyright 2013 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_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_FACTORY_H_
 #define CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_FACTORY_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
 
 namespace base {
 class MessageLoopProxy;
 }
 
 namespace cc {
+class BeginFrameSource;
 class ContextProvider;
 class OutputSurface;
 }
 
 namespace webkit {
 namespace gpu {
 class ContextProviderWebContext;
 class WebGraphicsContext3DInProcessCommandBufferImpl;
 }
 }
@@ skipping 18 matching lines @@
   virtual scoped_refptr<base::MessageLoopProxy>
       GetCompositorMessageLoop() = 0;
   virtual bool RecordFullLayer() = 0;
   virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface(
       int routing_id,
       scoped_refptr<FrameSwapMessageQueue> frame_swap_message_queue) = 0;
 
   // The factory maintains ownership of the returned interface.
   virtual InputHandlerManagerClient* GetInputHandlerManagerClient() = 0;
 
+  virtual scoped_ptr<cc::BeginFrameSource> CreateExternalBeginFrameSource(
+      int routing_id) = 0;
+
   virtual scoped_refptr<webkit::gpu::ContextProviderWebContext>
       CreateOffscreenContextProvider(
           const blink::WebGraphicsContext3D::Attributes& attributes,
           const std::string& debug_name) = 0;
   virtual scoped_refptr<StreamTextureFactory> CreateStreamTextureFactory(
       int frame_id) = 0;
   virtual webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl*
       CreateOffscreenGraphicsContext3D(
           const blink::WebGraphicsContext3D::Attributes& attributes) = 0;
 
  protected:
   SynchronousCompositorFactory() {}
   virtual ~SynchronousCompositorFactory() {}
 };
 
 }
 
 #endif  // CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_FACTORY_H_