Use inner HWND for accelerated rendering on windows

chrome/renderer/render_widget.cc

Index: chrome/renderer/render_widget.cc
===================================================================
--- chrome/renderer/render_widget.cc	(revision 65702)
+++ chrome/renderer/render_widget.cc	(working copy)
@@ -654,6 +654,12 @@
       this, &RenderWidget::CallDoDeferredUpdate));
 }
 
+void RenderWidget::didChangeAcceleratedCompositingActive(bool active) {
+#if defined(OS_WIN)
+  Send(new ViewHostMsg_ShowCompositorHostWindow(routing_id_, active));
+#endif
+}
+
 void RenderWidget::scheduleComposite() {
   // TODO(nduca): replace with something a little less hacky.  The reason this
   // hack is still used is because the Invalidate-DoDeferredUpdate loop