Let every "accelerated IO surface swapped" message have an identifier of the surface.

chrome/plugin/webplugin_proxy.h

 // Copyright (c) 2010 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 CHROME_PLUGIN_WEBPLUGIN_PROXY_H_
 #define CHROME_PLUGIN_WEBPLUGIN_PROXY_H_
 #pragma once
 
 #include <string>
 
@@ skipping 131 matching lines @@
 
 #if defined(OS_MACOSX)
   virtual void SetImeEnabled(bool enabled);
 
   virtual void BindFakePluginWindowHandle(bool opaque);
 
   virtual webkit_glue::WebPluginAcceleratedSurface* GetAcceleratedSurface();
 
   // Tell the browser (via the renderer) to invalidate because the
   // accelerated buffers have changed.
-  virtual void AcceleratedFrameBuffersDidSwap(gfx::PluginWindowHandle window);
+  virtual void AcceleratedFrameBuffersDidSwap(
+      gfx::PluginWindowHandle window, uint64 surface_id);
 
   // Tell the renderer and browser to associate the given plugin handle with
   // |accelerated_surface_identifier|. The geometry is used to resize any
   // native "window" (which on the Mac is a just a view).
   // This method is used when IOSurface support is available.
   virtual void SetAcceleratedSurface(gfx::PluginWindowHandle window,
                                      const gfx::Size& size,
                                      uint64 accelerated_surface_identifier);
 
   // Tell the renderer and browser to associate the given plugin handle with
@@ skipping 63 matching lines @@
 
 #endif
 
   // Contains the routing id of the host render view.
   int host_render_view_routing_id_;
 
   ScopedRunnableMethodFactory<WebPluginProxy> runnable_method_factory_;
 };
 
 #endif  // CHROME_PLUGIN_WEBPLUGIN_PROXY_H_