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

content/browser/renderer_host/render_process_host.h

Index: content/browser/renderer_host/render_process_host.h
===================================================================
--- content/browser/renderer_host/render_process_host.h	(revision 90090)
+++ content/browser/renderer_host/render_process_host.h	(working copy)
@@ -14,6 +14,7 @@
 #include "base/process_util.h"
 #include "base/time.h"
 #include "ipc/ipc_channel_proxy.h"
+#include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/surface/transport_dib.h"
 
 class Profile;
@@ -222,6 +223,14 @@
   // still owns the returned DIB.
   virtual TransportDIB* GetTransportDIB(TransportDIB::Id dib_id) = 0;
 
+  // RenderWidgetHost / compositing surface mapping functions ------------------
+
+  // Set a mapping from a RenderWidgetHost to a compositing surface. Pass a null
+  // handle to remove the mapping.
+  virtual void SetCompositingSurface(
+      int render_widget_id,
+      gfx::PluginWindowHandle compositing_surface) = 0;
+
   // Static management functions -----------------------------------------------
 
   // Flag to run the renderer in process.  This is primarily