Make EstablishGpuChannel synchronous. Remove obsolete Synchronize msg.

content/common/gpu/gpu_channel_manager.cc

 // Copyright (c) 2011 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.
 
 #include "content/common/gpu/gpu_channel_manager.h"
 
 #include <string>
 #include <vector>
 
 #include "app/win/scoped_com_initializer.h"
@@ skipping 29 matching lines @@
 }
 
 bool GpuChannelManager::OnMessageReceived(const IPC::Message& msg) {
   bool msg_is_ok = true;
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP_EX(GpuChannelManager, msg, msg_is_ok)
     IPC_MESSAGE_HANDLER(GpuMsg_EstablishChannel, OnEstablishChannel)
     IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
     IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
                         OnCreateViewCommandBuffer)
-    IPC_MESSAGE_HANDLER(GpuMsg_Synchronize, OnSynchronize)
     IPC_MESSAGE_HANDLER(GpuMsg_VisibilityChanged, OnVisibilityChanged)
 #if defined(TOOLKIT_USES_GTK) && !defined(TOUCH_UI) || defined(OS_WIN)
     IPC_MESSAGE_HANDLER(GpuMsg_ResizeViewACK, OnResizeViewACK);
 #elif defined(OS_MACOSX)
     IPC_MESSAGE_HANDLER(GpuMsg_AcceleratedSurfaceBuffersSwappedACK,
                         OnAcceleratedSurfaceBuffersSwappedACK)
     IPC_MESSAGE_HANDLER(GpuMsg_DestroyCommandBuffer,
                         OnDestroyCommandBuffer)
 #endif
     IPC_MESSAGE_UNHANDLED(handled = false)
@@ skipping 40 matching lines @@
     const IPC::ChannelHandle& channel_handle) {
   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
        iter != gpu_channels_.end(); ++iter) {
     if (iter->second->GetChannelName() == channel_handle.name) {
       gpu_channels_.erase(iter);
       return;
     }
   }
 }
 
-void GpuChannelManager::OnSynchronize() {
-  Send(new GpuHostMsg_SynchronizeReply());
-}
-
 void GpuChannelManager::OnVisibilityChanged(
     int32 render_view_id, int32 renderer_id, bool visible) {
   // TODO(amarinichev): this will be used for context eviction
 }
 
 void GpuChannelManager::OnCreateViewCommandBuffer(
     gfx::PluginWindowHandle window,
     int32 render_view_id,
     int32 renderer_id,
     const GPUCreateCommandBufferConfig& init_params) {
@@ skipping 40 matching lines @@
 
 void GpuChannelManager::LoseAllContexts() {
   MessageLoop::current()->PostTask(
       FROM_HERE, method_factory_.NewRunnableMethod(
           &GpuChannelManager::OnLoseAllContexts));
 }
 
 void GpuChannelManager::OnLoseAllContexts() {
   gpu_channels_.clear();
 }