Ensure LayerTreeHostImpl's current frame time is updated every frame

cc/trees/layer_tree_host_impl.h

 // Copyright 2011 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_TREES_LAYER_TREE_HOST_IMPL_H_
 #define CC_TREES_LAYER_TREE_HOST_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 329 matching lines @@
 
   template <typename RenderPassCuller>
       static void RemoveRenderPasses(RenderPassCuller culler, FrameData* frame);
 
   skia::RefPtr<SkPicture> CapturePicture();
 
   bool pinch_gesture_active() const { return pinch_gesture_active_; }
 
   void SetTreePriority(TreePriority priority);
 
-  void BeginNextFrame();
+  void ResetCurrentFrameTimeForNextFrame();
   base::TimeTicks CurrentFrameTimeTicks();
   base::Time CurrentFrameTime();
 
   scoped_ptr<base::Value> AsValue() const;
   scoped_ptr<base::Value> ActivationStateAsValue() const;
 
   bool page_scale_animation_active() const { return !!page_scale_animation_; }
 
  protected:
   LayerTreeHostImpl(
@@ skipping 123 matching lines @@
   scoped_ptr<AnimationRegistrar> animation_registrar_;
 
   RenderingStatsInstrumentation* rendering_stats_instrumentation_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHostImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_IMPL_H_