chromeos: Move files in //ash/common to //ash

ash/wm/window_state_util.h

 // Copyright 2014 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.
 
-#ifndef ASH_COMMON_WM_WINDOW_STATE_UTIL_H_
-#define ASH_COMMON_WM_WINDOW_STATE_UTIL_H_
+#ifndef ASH_WM_WINDOW_STATE_UTIL_H_
+#define ASH_WM_WINDOW_STATE_UTIL_H_
 
 #include "ash/ash_export.h"
 
 namespace ash {
 namespace wm {
 class WindowState;
 class WindowStateDelegate;
 
 // Toggle the full screen from inside a WindowState::State handler.
 ASH_EXPORT void ToggleFullScreen(WindowState* window_state,
                                  WindowStateDelegate* delegate);
 
 }  // namespace wm
 }  // namespace ash
 
-#endif  // ASH_COMMON_WM_WINDOW_STATE_UTIL_H_
+#endif  // ASH_WM_WINDOW_STATE_UTIL_H_