Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/common/wallpaper/wallpaper_widget_controller.h

 // 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.
 
-#ifndef ASH_WALLPAPER_WALLPAPER_WIDGET_CONTROLLER_H_
-#define ASH_WALLPAPER_WALLPAPER_WIDGET_CONTROLLER_H_
+#ifndef ASH_COMMON_WALLPAPER_WALLPAPER_WIDGET_CONTROLLER_H_
+#define ASH_COMMON_WALLPAPER_WALLPAPER_WIDGET_CONTROLLER_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 #include "ui/aura/window_observer.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace ash {
 
@@ skipping 74 matching lines @@
   WallpaperWidgetController* GetController(bool pass_ownership);
 
  private:
   std::unique_ptr<WallpaperWidgetController> controller_;
 
   DISALLOW_COPY_AND_ASSIGN(AnimatingWallpaperWidgetController);
 };
 
 }  // namespace ash
 
-#endif  // ASH_WALLPAPER_WALLPAPER_WIDGET_CONTROLLER_H_
+#endif  // ASH_COMMON_WALLPAPER_WALLPAPER_WIDGET_CONTROLLER_H_