Provide a vsync notification to the renderer

cc/test/fake_output_surface.cc

 // 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.
 
 #include "cc/test/fake_output_surface.h"
 
+#include "cc/output_surface_client.h"
+
 namespace cc {
 
 FakeOutputSurface::FakeOutputSurface(
     scoped_ptr<WebKit::WebGraphicsContext3D> context3d, bool has_parent)
-    : num_sent_frames_(0) {
+    : num_sent_frames_(0)
+    , vsync_notification_enabled_(false) {
   context3d_ = context3d.Pass();
   capabilities_.has_parent_compositor = has_parent;
 }
 
 FakeOutputSurface::FakeOutputSurface(
     scoped_ptr<SoftwareOutputDevice> software_device, bool has_parent)
     : num_sent_frames_(0) {
   software_device_ = software_device.Pass();
   capabilities_.has_parent_compositor = has_parent;
 }
@@ skipping 22 matching lines @@
 SoftwareOutputDevice* FakeOutputSurface::SoftwareDevice() const {
   return software_device_.get();
 }
 
 void FakeOutputSurface::SendFrameToParentCompositor(
     CompositorFrame* frame) {
   frame->AssignTo(&last_sent_frame_);
   ++num_sent_frames_;
 }
 
+void FakeOutputSurface::EnableVSyncNotification(bool enable) {
+  vsync_notification_enabled_ = enable;
+}
+
+void FakeOutputSurface::DidVSync(base::TimeTicks frame_time) {
+  client_->DidVSync(frame_time);
+}
+
 }  // namespace cc