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

ash/test/aura_shell_test_base.cc

Index: ash/test/aura_shell_test_base.cc
===================================================================
--- ash/test/aura_shell_test_base.cc	(revision 120096)
+++ ash/test/aura_shell_test_base.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -6,7 +6,6 @@
 
 #include "ash/shell.h"
 #include "ash/test/test_shell_delegate.h"
-#include "ui/gfx/compositor/layer_animator.h"
 
 namespace ash {
 namespace test {
@@ -22,9 +21,6 @@
 
   // Creates Shell and hook with Desktop.
   ash::Shell::CreateInstance(new TestShellDelegate);
-
-  // Disable animations during tests.
-  ui::LayerAnimator::set_disable_animations_for_test(true);
 }
 
 void AuraShellTestBase::TearDown() {