cc: Emulate BeginFrame in OutputSurfaces that don't support it natively

cc/test/fake_output_surface.h

 // Copyright 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 CC_TEST_FAKE_OUTPUT_SURFACE_H_
 #define CC_TEST_FAKE_OUTPUT_SURFACE_H_
 
 #include "base/time.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/output_surface.h"
@@ skipping 56 matching lines @@
 
   CompositorFrame& last_sent_frame() { return last_sent_frame_; }
   size_t num_sent_frames() { return num_sent_frames_; }
 
   virtual void SwapBuffers(CompositorFrame* frame) OVERRIDE;
 
   virtual void SetNeedsBeginFrame(bool enable) OVERRIDE;
   bool needs_begin_frame() const {
     return needs_begin_frame_;
   }
-  void BeginFrame(base::TimeTicks frame_time);
 
   void set_forced_draw_to_software_device(bool forced) {
     forced_draw_to_software_device_ = forced;
   }
   virtual bool ForcedDrawToSoftwareDevice() const OVERRIDE;
 
  protected:
   FakeOutputSurface(
       scoped_ptr<WebKit::WebGraphicsContext3D> context3d,
       bool delegated_rendering);
 
   FakeOutputSurface(
       scoped_ptr<SoftwareOutputDevice> software_device,
       bool delegated_rendering);
 
   FakeOutputSurface(
       scoped_ptr<WebKit::WebGraphicsContext3D> context3d,
       scoped_ptr<SoftwareOutputDevice> software_device,
       bool delegated_rendering);
 
+  void OnBeginFrame();
+
   CompositorFrame last_sent_frame_;
   size_t num_sent_frames_;
   bool needs_begin_frame_;
   bool forced_draw_to_software_device_;
+  base::WeakPtrFactory<FakeOutputSurface> fake_weak_ptr_factory_;
 };
 
 static inline scoped_ptr<cc::OutputSurface> CreateFakeOutputSurface() {
   return FakeOutputSurface::Create3d(
       TestWebGraphicsContext3D::Create(
           WebKit::WebGraphicsContext3D::Attributes())
           .PassAs<WebKit::WebGraphicsContext3D>()).PassAs<cc::OutputSurface>();
 }
 
 }  // namespace cc
 
 #endif  // CC_TEST_FAKE_OUTPUT_SURFACE_H_