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

content/renderer/render_view_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 158 matching lines @@
   // 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).
   CONTENT_EXPORT static RenderViewImpl* Create(
       gfx::NativeViewId parent_hwnd,
       int32 opener_id,
       const content::RendererPreferences& renderer_prefs,
       const WebPreferences& webkit_prefs,
       SharedRenderViewCounter* counter,
       int32 routing_id,
+      int32 surface_id,
       int64 session_storage_namespace_id,
       const string16& frame_name,
       int32 next_page_id);
 
   // Returns the RenderViewImpl containing the given WebView.
   CONTENT_EXPORT static RenderViewImpl* FromWebView(WebKit::WebView* webview);
 
   // May return NULL when the view is closing.
   CONTENT_EXPORT WebKit::WebView* webview() const;
 
@@ skipping 493 matching lines @@
     HTTP_404,
     CONNECTION_ERROR,
   };
 
   RenderViewImpl(gfx::NativeViewId parent_hwnd,
                  int32 opener_id,
                  const content::RendererPreferences& renderer_prefs,
                  const WebPreferences& webkit_prefs,
                  SharedRenderViewCounter* counter,
                  int32 routing_id,
+                 int32 surface_id,
                  int64 session_storage_namespace_id,
                  const string16& frame_name,
                  int32 next_page_id);
 
   // Do not delete directly.  This class is reference counted.
   virtual ~RenderViewImpl();
 
   void UpdateURL(WebKit::WebFrame* frame);
   void UpdateTitle(WebKit::WebFrame* frame, const string16& title,
                    WebKit::WebTextDirection title_direction);
@@ skipping 537 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(RenderViewImpl);
 };
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_