cc: Rename VSync to BeginFrame

cc/trees/layer_tree_host_impl_unittest.cc

Index: cc/trees/layer_tree_host_impl_unittest.cc
diff --git a/cc/trees/layer_tree_host_impl_unittest.cc b/cc/trees/layer_tree_host_impl_unittest.cc
index eda8ab3b9f2042974ade8767f3d62ad92750be5b..3bdd2a1fde3092474eb366b5a71d1edde9c21562 100644
--- a/cc/trees/layer_tree_host_impl_unittest.cc
+++ b/cc/trees/layer_tree_host_impl_unittest.cc
@@ -94,7 +94,8 @@ class LayerTreeHostImplTest : public testing::Test,
   virtual void OnSwapBuffersCompleteOnImplThread() OVERRIDE {}
   virtual void OnVSyncParametersChanged(base::TimeTicks timebase,
                                         base::TimeDelta interval) OVERRIDE {}
-  virtual void DidVSync(base::TimeTicks frame_time) OVERRIDE {}
+  virtual void BeginFrameOnImplThread(base::TimeTicks frame_time)
+      OVERRIDE {}
   virtual void OnCanDrawStateChanged(bool can_draw) OVERRIDE {
     on_can_draw_state_changed_called_ = true;
   }
@@ -127,8 +128,8 @@ class LayerTreeHostImplTest : public testing::Test,
   virtual void RenewTreePriority() OVERRIDE {}
   virtual void RequestScrollbarAnimationOnImplThread(base::TimeDelta delay)
       OVERRIDE {}
-  virtual void DidReceiveLastInputEventForVSync(base::TimeTicks frame_time)
-      OVERRIDE {}
+  virtual void DidReceiveLastInputEventForBeginFrameOnImplThread(
+      base::TimeTicks frame_time) OVERRIDE {}
   virtual void DidActivatePendingTree() OVERRIDE {}
 
   void set_reduce_memory_result(bool reduce_memory_result) {