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

content/renderer/render_view.cc

Index: content/renderer/render_view.cc
===================================================================
--- content/renderer/render_view.cc	(revision 90090)
+++ content/renderer/render_view.cc	(working copy)
@@ -326,7 +326,6 @@
 
 RenderView::RenderView(RenderThreadBase* render_thread,
                        gfx::NativeViewId parent_hwnd,
-                       gfx::PluginWindowHandle compositing_surface,
                        int32 opener_id,
                        const RendererPreferences& renderer_prefs,
                        const WebPreferences& webkit_prefs,
@@ -384,7 +383,7 @@
   // completing initialization.  Otherwise, we can finish it now.
   if (opener_id == MSG_ROUTING_NONE) {
     did_show_ = true;
-    CompleteInit(parent_hwnd, compositing_surface);
+    CompleteInit(parent_hwnd);
   }
 
   g_view_map.Get().insert(std::make_pair(webview(), this));
@@ -471,7 +470,6 @@
 RenderView* RenderView::Create(
     RenderThreadBase* render_thread,
     gfx::NativeViewId parent_hwnd,
-    gfx::PluginWindowHandle compositing_surface,
     int32 opener_id,
     const RendererPreferences& renderer_prefs,
     const WebPreferences& webkit_prefs,
@@ -483,7 +481,6 @@
   return new RenderView(
       render_thread,
       parent_hwnd,
-      compositing_surface,
       opener_id,
       renderer_prefs,
       webkit_prefs,
@@ -1281,7 +1278,6 @@
 
   RenderView* view = RenderView::Create(render_thread_,
                                         0,
-                                        gfx::kNullPluginWindow,
                                         routing_id_,
                                         renderer_preferences_,
                                         webkit_preferences_,