Rework ash::CursorManager into a corewm object, to share code with desktop.

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/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/cursor_manager.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"
@@ skipping 1033 matching lines @@
 
   Advance(SessionStateAnimator::ANIMATION_SPEED_MOVE_WINDOWS);
   ExpectUnlockAfterUIDestroyedAnimationFinished();
   EXPECT_TRUE(IsBackgroundHidden());
 
   ExpectUnlockedState();
 }
 
 }  // namespace test
 }  // namespace ash