Merge the IPCs used for GPU process synchronization.

content/browser/renderer_host/render_process_host_impl.cc

 // 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #if defined(OS_WIN)
@@ skipping 1375 matching lines @@
   MHTMLGenerationManager::GetInstance()->MHTMLGenerated(job_id, data_size);
 }
 
 void RenderProcessHostImpl::OnCompositorSurfaceBuffersSwappedNoHost(
       int32 surface_id,
       uint64 surface_handle,
       int32 route_id,
       int32 gpu_process_host_id) {
   TRACE_EVENT0("renderer_host",
                "RenderWidgetHostImpl::OnCompositorSurfaceBuffersSwappedNoHost");
-  RenderWidgetHostImpl::AcknowledgeSwapBuffers(route_id,
-                                               gpu_process_host_id);
+  RenderWidgetHostImpl::AcknowledgeBufferPresent(route_id,
+                                                 gpu_process_host_id);
 }
 
 }  // namespace content