cc: Adding DidFinishImplFrame to LTHI.

cc/test/layer_tree_test.h

Index: cc/test/layer_tree_test.h
diff --git a/cc/test/layer_tree_test.h b/cc/test/layer_tree_test.h
index 15ec2151b83c57480f241ce3d2189946ad998f83..7b48f3f15917d359c593bf0a236a5ce2a3ff6a18 100644
--- a/cc/test/layer_tree_test.h
+++ b/cc/test/layer_tree_test.h
@@ -39,6 +39,7 @@ class TestHooks : public AnimationDelegate {
       scoped_ptr<ResourcePool>* staging_resource_pool);
   virtual void WillBeginImplFrameOnThread(LayerTreeHostImpl* host_impl,
                                           const BeginFrameArgs& args) {}
+  virtual void DidFinishImplFrameOnThread(LayerTreeHostImpl* host_impl) {}
   virtual void BeginMainFrameAbortedOnThread(LayerTreeHostImpl* host_impl,
                                              CommitEarlyOutReason reason) {}
   virtual void BeginCommitOnThread(LayerTreeHostImpl* host_impl) {}
@@ -87,10 +88,8 @@ class TestHooks : public AnimationDelegate {
   virtual void DidSetVisibleOnImplTree(LayerTreeHostImpl* host_impl,
                                        bool visible) {}
   virtual void ScheduleComposite() {}
-  virtual void SendBeginFramesToChildren(const BeginFrameArgs& args) {}
 
   // Hooks for SchedulerClient.
-  virtual void WillBeginImplFrame(const BeginFrameArgs& args) {}
   virtual void ScheduledActionWillSendBeginMainFrame() {}
   virtual void ScheduledActionSendBeginMainFrame() {}
   virtual void ScheduledActionDrawAndSwapIfPossible() {}
@@ -99,6 +98,8 @@ class TestHooks : public AnimationDelegate {
   virtual void ScheduledActionBeginOutputSurfaceCreation() {}
   virtual void ScheduledActionPrepareTiles() {}
   virtual void ScheduledActionInvalidateOutputSurface() {}
+  virtual void SendBeginFramesToChildren(const BeginFrameArgs& args) {}
+  virtual void SendBeginMainFrameNotExpectedSoon() {}
 
   // Implementation of AnimationDelegate:
   void NotifyAnimationStarted(base::TimeTicks monotonic_time,