Surfaces should acknowledge frame submissions

mojo/services/surfaces/surfaces_impl.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 MOJO_SERVICES_SURFACES_SURFACES_IMPL_H_
 #define MOJO_SERVICES_SURFACES_SURFACES_IMPL_H_
 
 #include "cc/surfaces/display_client.h"
 #include "cc/surfaces/surface_factory.h"
 #include "cc/surfaces/surface_factory_client.h"
@@ skipping 24 matching lines @@
 
   SurfacesImpl(cc::SurfaceManager* manager,
                uint32_t id_namespace,
                Client* client,
                SurfacePtr* surface);
 
   ~SurfacesImpl() override;
 
   // Surface implementation.
   void CreateSurface(SurfaceIdPtr id, mojo::SizePtr size) override;
-  void SubmitFrame(SurfaceIdPtr id, FramePtr frame) override;
+  void SubmitFrame(SurfaceIdPtr id,
+                   FramePtr frame,
+                   const mojo::Closure& callback) override;
   void DestroySurface(SurfaceIdPtr id) override;
   void CreateGLES2BoundSurface(CommandBufferPtr gles2_client,
                                SurfaceIdPtr id,
                                mojo::SizePtr size) override;
 
   // SurfaceFactoryClient implementation.
   void ReturnResources(const cc::ReturnedResourceArray& resources) override;
 
   // DisplayClient implementation.
   void DisplayDamaged() override;
@@ skipping 14 matching lines @@
   scoped_ptr<cc::Display> display_;
   ScopedMessagePipeHandle command_buffer_handle_;
   StrongBinding<Surface> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfacesImpl);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_SURFACES_SURFACES_IMPL_H_