Use inner HWND for accelerated rendering on windows

chrome/browser/renderer_host/render_widget_host.h

Index: chrome/browser/renderer_host/render_widget_host.h
===================================================================
--- chrome/browser/renderer_host/render_widget_host.h	(revision 66779)
+++ chrome/browser/renderer_host/render_widget_host.h	(working copy)
@@ -203,7 +203,9 @@
   virtual void LostCapture();
 
   // Tells us whether the page is rendered directly via the GPU process.
-  bool is_gpu_rendering_active() { return is_gpu_rendering_active_; }
+  bool is_accelerated_compositing_active() {
+    return is_accelerated_compositing_active_;
+  }
 
   // Notifies the RenderWidgetHost that the View was destroyed.
   void ViewDestroyed();
@@ -480,7 +482,7 @@
                                     const gfx::Rect& caret_rect);
   void OnMsgImeCancelComposition();
 
-  void OnMsgGpuRenderingActivated(bool activated);
+  void OnMsgDidActivateAcceleratedCompositing(bool activated);
 
 #if defined(OS_MACOSX)
   void OnMsgGetScreenInfo(gfx::NativeViewId view,
@@ -560,7 +562,7 @@
   bool is_hidden_;
 
   // True when a page is rendered directly via the GPU process.
-  bool is_gpu_rendering_active_;
+  bool is_accelerated_compositing_active_;
 
   // Set if we are waiting for a repaint ack for the view.
   bool repaint_ack_pending_;