Route IPC through browser when creating a viewable command buffer.

chrome/browser/renderer_host/render_message_filter.h

Index: chrome/browser/renderer_host/render_message_filter.h
diff --git a/chrome/browser/renderer_host/render_message_filter.h b/chrome/browser/renderer_host/render_message_filter.h
index dee75a04a2d2fd982e4a24b9279609ff3a3b1830..a16c2aaacdf61fad41c469190ec6ccc6d6546f9d 100644
--- a/chrome/browser/renderer_host/render_message_filter.h
+++ b/chrome/browser/renderer_host/render_message_filter.h
@@ -31,6 +31,7 @@
 
 class ChromeURLRequestContext;
 struct FontDescriptor;
+struct GPUCreateCommandBufferConfig;
 class HostContentSettingsMap;
 class HostZoomMap;
 class NotificationsPrefsCache;
@@ -332,7 +333,10 @@ class RenderMessageFilter : public BrowserMessageFilter,
       IPC::Message* reply_msg);
   void OnEstablishGpuChannel();
   void OnSynchronizeGpu(IPC::Message* reply);
-
+  void OnCreateViewCommandBuffer(
+      int32 render_view_id,
+      const GPUCreateCommandBufferConfig& init_params,
+      IPC::Message* reply);
   void OnAsyncOpenFile(const IPC::Message& msg,
                        const FilePath& path,
                        int flags,