Introduce NON_ZERO_DURATION for animation unit tests

ui/compositor/layer_animator_unittest.cc

Index: ui/compositor/layer_animator_unittest.cc
diff --git a/ui/compositor/layer_animator_unittest.cc b/ui/compositor/layer_animator_unittest.cc
index 3ae8c2b34ebc10928d19d6dffc0be48bdba5359c..c72eab998b92531c7bdb6dc7a93889b8b24c6ac7 100644
--- a/ui/compositor/layer_animator_unittest.cc
+++ b/ui/compositor/layer_animator_unittest.cc
@@ -2000,8 +2000,8 @@ TEST(LayerAnimatorTest, CallbackDeletesAnimationInProgress) {
 // tests the behavior when the OnLayerAnimationAborted() callback causes
 // all of the animator's other animations to be deleted.
 TEST(LayerAnimatorTest, ObserverDeletesAnimationsOnAbort) {
-  ScopedAnimationDurationScaleMode normal_duration_mode(
-      ScopedAnimationDurationScaleMode::NORMAL_DURATION);
+  ScopedAnimationDurationScaleMode test_duration_mode(
+      ScopedAnimationDurationScaleMode::NON_ZERO_DURATION);
   scoped_refptr<LayerAnimator> animator(new TestLayerAnimator());
   animator->set_disable_timer_for_test(true);
   TestLayerAnimationDelegate delegate;