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..53b6236ea156bbdfe81af743dd93c862190ac0c0 100644
--- a/ui/compositor/layer_animator_unittest.cc
+++ b/ui/compositor/layer_animator_unittest.cc
@@ -1890,8 +1890,8 @@ TEST(LayerAnimatorTest, ObserverDetachedBeforeAnimationFinished) {
 // causes the second to be deleted, we should not attempt to animate the second
 // animation.
 TEST(LayerAnimatorTest, ObserverDeletesAnimationsOnEnd) {
-  ScopedAnimationDurationScaleMode normal_duration_mode(
-      ScopedAnimationDurationScaleMode::NORMAL_DURATION);
+  ScopedAnimationDurationScaleMode test_duration_mode(
+      ScopedAnimationDurationScaleMode::TEST_DURATION);
   scoped_refptr<LayerAnimator> animator(new TestLayerAnimator());
   animator->set_disable_timer_for_test(true);
   TestLayerAnimationDelegate delegate;
@@ -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::TEST_DURATION);
   scoped_refptr<LayerAnimator> animator(new TestLayerAnimator());
   animator->set_disable_timer_for_test(true);
   TestLayerAnimationDelegate delegate;