cc: Hook vsync time source to output surface

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"
 #include "cc/output/software_output_device.h"
 #include "cc/test/test_web_graphics_context_3d.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
 
 namespace cc {
 
 class FakeOutputSurface : public OutputSurface {
  public:
@@ skipping 36 matching lines @@
     return make_scoped_ptr(
         new FakeOutputSurface(software_device.Pass(), true));
   }
 
   virtual bool BindToClient(OutputSurfaceClient*) OVERRIDE;
   virtual void SendFrameToParentCompositor(CompositorFrame*) OVERRIDE;
 
   CompositorFrame& last_sent_frame() { return last_sent_frame_; }
   size_t num_sent_frames() { return num_sent_frames_; }
 
+  virtual void EnableVSyncNotification(bool enable) OVERRIDE;
+  bool vsync_notification_enabled() const {
+    return vsync_notification_enabled_;
+  }
+  void DidVSync(base::TimeTicks frame_time);
+
  private:
   FakeOutputSurface(
       scoped_ptr<WebKit::WebGraphicsContext3D> context3d,
       bool has_parent);
 
   FakeOutputSurface(
       scoped_ptr<SoftwareOutputDevice> software_device,
       bool has_parent);
 
   CompositorFrame last_sent_frame_;
   size_t num_sent_frames_;
+  bool vsync_notification_enabled_;
 };
 
 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_