Remove wall time from NotifyAnimationStarted and NotifyAnimationFinished.

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 43cfb88e88f35efd4093bc8c23a7a96c1ce935cd..b017d0ff6d43b0ff5a2c0cc5b42e323bdaca3574 100644
--- a/cc/test/layer_tree_test.h
+++ b/cc/test/layer_tree_test.h
@@ -81,12 +81,10 @@ class TestHooks : public AnimationDelegate {
   virtual base::TimeDelta LowFrequencyAnimationInterval() const;
 
   // Implementation of AnimationDelegate:
-  virtual void NotifyAnimationStarted(double wall_clock_time,
-                                      base::TimeTicks monotonic_time,
+  virtual void NotifyAnimationStarted(base::TimeTicks monotonic_time,
                                       Animation::TargetProperty target_property)
       OVERRIDE {}
   virtual void NotifyAnimationFinished(
-      double wall_clock_time,
       base::TimeTicks monotonic_time,
       Animation::TargetProperty target_property) OVERRIDE {}