Support browser side thumbnailing for GPU composited pages on Windows.

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 74 matching lines @@
   virtual void WindowFrameChanged() OVERRIDE {}
 #endif  // defined(OS_MACOSX)
 #if defined(TOOLKIT_USES_GTK)
   virtual GdkEventButton* GetLastMouseDown() OVERRIDE;
 #if !defined(TOOLKIT_VIEWS)
   virtual gfx::NativeView BuildInputMethodsGtkMenu() OVERRIDE;
 #endif  // !defined(TOOLKIT_VIEWS)
 #endif  // defined(TOOLKIT_USES_GTK)
   virtual void UnhandledWheelEvent(
       const WebKit::WebMouseWheelEvent& event) OVERRIDE {}
+  virtual bool CopyFromCompositingSurface(
+      const gfx::Size& size,
+             skia::PlatformCanvas* output) OVERRIDE;
 
   // RenderWidgetHostViewPort implementation.
   virtual void InitAsPopup(RenderWidgetHostView* parent_host_view,
                            const gfx::Rect& pos) OVERRIDE {}
   virtual void InitAsFullscreen(
       RenderWidgetHostView* reference_host_view) OVERRIDE {}
   virtual void DidBecomeSelected() OVERRIDE {}
   virtual void WasHidden() OVERRIDE {}
   virtual void MovePluginWindows(
       const std::vector<webkit::npapi::WebPluginGeometry>& moves) OVERRIDE {}
@@ skipping 290 matching lines @@
   scoped_ptr<TestTabContents> contents_;
 #if defined(USE_AURA)
   scoped_ptr<aura::RootWindow> root_window_;
   scoped_ptr<aura::test::TestStackingClient> test_stacking_client_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostTestHarness);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_TEST_RENDER_VIEW_HOST_H_