Add IPC allowing GPU process to tell browser process to temporarily drop a front buffer.

content/browser/renderer_host/test_render_view_host.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_RENDERER_HOST_TEST_RENDER_VIEW_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_TEST_RENDER_VIEW_HOST_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
@@ skipping 84 matching lines @@
   virtual void Destroy() OVERRIDE {}
   virtual void SetTooltipText(const string16& tooltip_text) OVERRIDE {}
   virtual BackingStore* AllocBackingStore(const gfx::Size& size) OVERRIDE;
   virtual void OnAcceleratedCompositingStateChange() OVERRIDE;
   virtual void AcceleratedSurfaceBuffersSwapped(
       const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
       int gpu_host_id) OVERRIDE;
   virtual void AcceleratedSurfacePostSubBuffer(
       const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
       int gpu_host_id) OVERRIDE;
+  virtual void AcceleratedSurfaceSuspend() OVERRIDE;
 #if defined(OS_MACOSX)
   virtual void SetTakesFocusOnlyOnMouseDown(bool flag) OVERRIDE {}
   virtual gfx::Rect GetViewCocoaBounds() const OVERRIDE;
   virtual void SetActive(bool active) OVERRIDE;
   virtual void SetWindowVisibility(bool visible) OVERRIDE {}
   virtual void WindowFrameChanged() OVERRIDE {}
   virtual void PluginFocusChanged(bool focused, int plugin_id) OVERRIDE;
   virtual void StartPluginIme() OVERRIDE;
   virtual bool PostProcessEventForPluginIme(
       const NativeWebKeyboardEvent& event) OVERRIDE;
@@ skipping 228 matching lines @@
   MockRenderProcessHostFactory rph_factory_;
   TestRenderViewHostFactory rvh_factory_;
 
  private:
   scoped_ptr<TestTabContents> contents_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostTestHarness);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_TEST_RENDER_VIEW_HOST_H_