Revert 120092 - Reland 120074 -- Disable animations during aura tests.

ui/gfx/compositor/test/test_layer_animation_observer.cc

Index: ui/gfx/compositor/test/test_layer_animation_observer.cc
===================================================================
--- ui/gfx/compositor/test/test_layer_animation_observer.cc	(revision 120096)
+++ ui/gfx/compositor/test/test_layer_animation_observer.cc	(working copy)
@@ -19,17 +19,17 @@
 }
 
 void TestLayerAnimationObserver::OnLayerAnimationEnded(
-    LayerAnimationSequence* sequence) {
+    const LayerAnimationSequence* sequence) {
   last_ended_sequence_ = sequence;
 }
 
 void TestLayerAnimationObserver::OnLayerAnimationAborted(
-    LayerAnimationSequence* sequence) {
+    const LayerAnimationSequence* sequence) {
   last_aborted_sequence_ = sequence;
 }
 
 void TestLayerAnimationObserver::OnLayerAnimationScheduled(
-    LayerAnimationSequence* sequence) {
+    const LayerAnimationSequence* sequence) {
   last_scheduled_sequence_ = sequence;
 }