Use shared D3D9 texture to transport the compositor's backing buffer to the browser...

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 "content/common/child_thread.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/gpu_messages.h"
 
@@ skipping 43 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_VisibilityChanged, OnVisibilityChanged)
-#if defined(TOOLKIT_USES_GTK) && !defined(TOUCH_UI) || defined(OS_WIN)
-    IPC_MESSAGE_HANDLER(GpuMsg_ResizeViewACK, OnResizeViewACK);
-#endif
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP_EX()
   return handled;
 }
 
 bool GpuChannelManager::Send(IPC::Message* msg) {
   return gpu_child_thread_->Send(msg);
 }
 
 void GpuChannelManager::OnEstablishChannel(int renderer_id) {
@@ skipping 42 matching lines @@
 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) {
+  CHECK(render_view_id);

[jonathan.backer, 2011/11/03 23:09:07]

You sure you want to CHECK and not DCHECK? Not sure why this was added to this
CL.

   int32 route_id = MSG_ROUTING_NONE;
 
   GpuChannelMap::const_iterator iter = gpu_channels_.find(renderer_id);
   if (iter != gpu_channels_.end()) {
     iter->second->CreateViewCommandBuffer(
         window, render_view_id, init_params, &route_id);
   }
 
   Send(new GpuHostMsg_CommandBufferCreated(route_id));
 }
 
-void GpuChannelManager::OnResizeViewACK(int32 renderer_id,
-                                        int32 command_buffer_route_id) {
-  GpuChannelMap::const_iterator iter = gpu_channels_.find(renderer_id);
-  if (iter == gpu_channels_.end())
-    return;
-  scoped_refptr<GpuChannel> channel = iter->second;
-
-  channel->ViewResized(command_buffer_route_id);
-}
-
 void GpuChannelManager::LoseAllContexts() {
   MessageLoop::current()->PostTask(
       FROM_HERE, method_factory_.NewRunnableMethod(
           &GpuChannelManager::OnLoseAllContexts));
 }
 
 void GpuChannelManager::OnLoseAllContexts() {
   gpu_channels_.clear();
 }