Drop frontbuffers with ui-use-gpu-process, synchronized with browser, decoupled from backbuffer dro…

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 128 matching lines @@
                                bool processed) OVERRIDE { }
   virtual void SetHasHorizontalScrollbar(
       bool has_horizontal_scrollbar) OVERRIDE { }
   virtual void SetScrollOffsetPinning(
       bool is_pinned_to_left, bool is_pinned_to_right) OVERRIDE { }
 
 #if defined(USE_AURA)
   virtual void AcceleratedSurfaceNew(
       int32 width, int32 height, uint64* surface_id,
       TransportDIB::Handle* surface_handle) OVERRIDE { }
-  virtual void AcceleratedSurfaceRelease(uint64 surface_id) OVERRIDE { }
+  virtual bool AcceleratedSurfaceRelease(uint64 surface_id) OVERRIDE;
 #endif
 
 #if defined(TOOLKIT_GTK)
   virtual void CreatePluginContainer(gfx::PluginWindowHandle id) OVERRIDE { }
   virtual void DestroyPluginContainer(gfx::PluginWindowHandle id) OVERRIDE { }
 #endif  // defined(TOOLKIT_GTK)
 
   virtual gfx::GLSurfaceHandle GetCompositingSurface() OVERRIDE;
 
   virtual bool LockMouse() OVERRIDE;
@@ skipping 147 matching lines @@
   TestRenderViewHost* active_test_rvh();
   TestWebContents* contents();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostImplTestHarness);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_TEST_RENDER_VIEW_HOST_H_