Revert 202787 "Remove unnecessary ui::CompositorTestSupport"

trunk/src/ash/wm/session_state_controller_impl2_unittest.cc

 // Copyright (c) 2012 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.
 
 #include "ash/wm/session_state_controller_impl2.h"
 
 #include "ash/ash_switches.h"
 #include "ash/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/test_shell_delegate.h"
 #include "ash/wm/power_button_controller.h"
 #include "ash/wm/session_state_animator.h"
 #include "ash/wm/session_state_controller.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #include "ui/aura/env.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/test/event_generator.h"
 #include "ui/compositor/layer_animator.h"
 #include "ui/compositor/scoped_animation_duration_scale_mode.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
+#include "ui/compositor/test/compositor_test_support.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
 
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
 #endif
 
 namespace ash {
 
 using internal::SessionStateAnimator;
@@ skipping 1027 matching lines @@
 
   Advance(SessionStateAnimator::ANIMATION_SPEED_MOVE_WINDOWS);
   ExpectUnlockAfterUIDestroyedAnimationFinished();
   EXPECT_TRUE(IsBackgroundHidden());
 
   ExpectUnlockedState();
 }
 
 }  // namespace test
 }  // namespace ash