Merge the IPCs used for GPU process synchronization.

content/browser/renderer_host/render_widget_host_impl.h

 // Copyright (c) 2012 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_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #pragma once
 
 #include <deque>
 #include <string>
@@ skipping 339 matching lines @@
 
   // Requests the renderer to select the region between two points.
   void SelectRange(const gfx::Point& start, const gfx::Point& end);
 
   // Called when the reponse to a pending mouse lock request has arrived.
   // Returns true if |allowed| is true and the mouse has been successfully
   // locked.
   bool GotResponseToLockMouseRequest(bool allowed);
 
   // Called by the view in response to AcceleratedSurfaceBuffersSwapped.
-  static void AcknowledgeSwapBuffers(int32 route_id, int gpu_host_id);
-  static void AcknowledgePostSubBuffer(int32 route_id, int gpu_host_id);
+  static void AcknowledgeBufferPresent(int32 route_id, int gpu_host_id);
 
   // Signals that the compositing surface was updated, e.g. after a lost context
   // event.
   void CompositingSurfaceUpdated();
 
   void set_allow_privileged_mouse_lock(bool allow) {
     allow_privileged_mouse_lock_ = allow;
   }
 
  protected:
@@ skipping 377 matching lines @@
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
   scoped_ptr<TapSuppressionController> tap_suppression_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_