gpu: reference target surfaces through a globally unique surface id.

content/common/gpu/gpu_channel_manager.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.
 
 #include "content/common/gpu/gpu_channel_manager.h"
 
 #include "base/bind.h"
 #include "content/common/child_thread.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/gpu_messages.h"
@@ skipping 98 matching lines @@
        iter != gpu_channels_.end(); ++iter) {
     if (iter->second->GetChannelName() == channel_handle.name) {
       gpu_channels_.erase(iter);
       return;
     }
   }
 }
 
 void GpuChannelManager::OnCreateViewCommandBuffer(
     gfx::PluginWindowHandle window,
-    int32 render_view_id,
+    int32 surface_id,
     int32 client_id,
     const GPUCreateCommandBufferConfig& init_params) {
-  DCHECK(render_view_id);
+  DCHECK(surface_id);
   int32 route_id = MSG_ROUTING_NONE;
 
   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
   if (iter != gpu_channels_.end()) {
     iter->second->CreateViewCommandBuffer(
-        window, render_view_id, init_params, &route_id);
+        window, surface_id, init_params, &route_id);
   }
 
   Send(new GpuHostMsg_CommandBufferCreated(route_id));
 }
 
 void GpuChannelManager::LoseAllContexts() {
   MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&GpuChannelManager::OnLoseAllContexts,
                  weak_factory_.GetWeakPtr()));
 }
 
 void GpuChannelManager::OnLoseAllContexts() {
   gpu_channels_.clear();
 }