Use inner HWND for accelerated rendering on windows

chrome/browser/renderer_host/render_widget_host.h

 // Copyright (c) 2009 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 CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
 #pragma once
 
 #include <deque>
 #include <string>
@@ skipping 491 matching lines @@
                                         uint64 mach_port);
   void OnAcceleratedSurfaceSetTransportDIB(gfx::PluginWindowHandle window,
                                            int32 width,
                                            int32 height,
                                            TransportDIB::Handle transport_dib);
   void OnAcceleratedSurfaceBuffersSwapped(gfx::PluginWindowHandle window,
                                           uint64 surface_id);
 #elif defined(OS_POSIX)
   void OnMsgCreatePluginContainer(gfx::PluginWindowHandle id);
   void OnMsgDestroyPluginContainer(gfx::PluginWindowHandle id);
+#elif defined(OS_WIN)
+  void OnShowCompositorHostWindow(bool show);
 #endif
 
   // Paints the given bitmap to the current backing store at the given location.
   void PaintBackingStoreRect(TransportDIB::Id bitmap,
                              const gfx::Rect& bitmap_rect,
                              const std::vector<gfx::Rect>& copy_rects,
                              const gfx::Size& view_size);
 
   // Scrolls the given |clip_rect| in the backing by the given dx/dy amount. The
   // |dib| and its corresponding location |bitmap_rect| in the backing store
@@ skipping 147 matching lines @@
   // but the Char event generated by alt-2 may also activate a HTML element
   // if its accesskey happens to be "2", then the user may get confused when
   // switching back to the original tab, because the content may already be
   // changed.
   bool suppress_next_char_events_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHost);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_