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

content/browser/renderer_host/render_message_filter.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_MESSAGE_FILTER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_MESSAGE_FILTER_H_
 #pragma once
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ skipping 83 matching lines @@
  private:
   friend class content::BrowserThread;
   friend class base::DeleteHelper<RenderMessageFilter>;
 
   class OpenChannelToNpapiPluginCallback;
 
   virtual ~RenderMessageFilter();
 
   void OnMsgCreateWindow(const ViewHostMsg_CreateWindow_Params& params,
                          int* route_id,
+                         int* surface_id,
                          int64* cloned_session_storage_namespace_id);
   void OnMsgCreateWidget(int opener_id,
                          WebKit::WebPopupType popup_type,
-                         int* route_id);
-  void OnMsgCreateFullscreenWidget(int opener_id, int* route_id);
+                         int* route_id,
+                         int* surface_id);
+  void OnMsgCreateFullscreenWidget(int opener_id,
+                                   int* route_id,
+                                   int* surface_id);
   void OnSetCookie(const IPC::Message& message,
                    const GURL& url,
                    const GURL& first_party_for_cookies,
                    const std::string& cookie);
   void OnGetCookies(const GURL& url,
                     const GURL& first_party_for_cookies,
                     IPC::Message* reply_msg);
   void OnGetRawCookies(const GURL& url,
                        const GURL& first_party_for_cookies,
                        IPC::Message* reply_msg);
@@ skipping 139 matching lines @@
   base::TimeTicks cpu_usage_sample_time_;
   // Records the last sampled CPU usage in percents.
   int cpu_usage_;
   // Used for sampling CPU usage of the renderer process.
   scoped_ptr<base::ProcessMetrics> process_metrics_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderMessageFilter);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_MESSAGE_FILTER_H_