GPU compositing surface handle is no longer sent to renderer process.

content/renderer/render_view.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_RENDERER_RENDER_VIEW_H_
 #define CONTENT_RENDERER_RENDER_VIEW_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 161 matching lines @@
  public:
   // Creates a new RenderView.  The parent_hwnd specifies a HWND to use as the
   // parent of the WebView HWND that will be created.  If this is a constrained
   // popup or as a new tab, opener_id is the routing ID of the RenderView
   // responsible for creating this RenderView (corresponding to parent_hwnd).
   // |counter| is either a currently initialized counter, or NULL (in which case
   // we treat this RenderView as a top level window).
   static RenderView* Create(
       RenderThreadBase* render_thread,
       gfx::NativeViewId parent_hwnd,
-      gfx::PluginWindowHandle compositing_surface,
       int32 opener_id,
       const RendererPreferences& renderer_prefs,
       const WebPreferences& webkit_prefs,
       SharedRenderViewCounter* counter,
       int32 routing_id,
       int64 session_storage_namespace_id,
       const string16& frame_name);
 
   // Visit all RenderViews with a live WebView (i.e., RenderViews that have
   // been closed but not yet destroyed are excluded).
@@ skipping 464 matching lines @@
   };
 
   enum ErrorPageType {
     DNS_ERROR,
     HTTP_404,
     CONNECTION_ERROR,
   };
 
   RenderView(RenderThreadBase* render_thread,
              gfx::NativeViewId parent_hwnd,
-             gfx::PluginWindowHandle compositing_surface,
              int32 opener_id,
              const RendererPreferences& renderer_prefs,
              const WebPreferences& webkit_prefs,
              SharedRenderViewCounter* counter,
              int32 routing_id,
              int64 session_storage_namespace_id,
              const string16& frame_name);
 
   // Do not delete directly.  This class is reference counted.
   virtual ~RenderView();
@@ skipping 482 matching lines @@
   // bunch of stuff, you should probably create a helper class and put your
   // data and methods on that to avoid bloating RenderView more.  You can use
   // the Observer interface to filter IPC messages and receive frame change
   // notifications.
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(RenderView);
 };
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_H_