chromeos: Move files in //ash/common to //ash, part 2

ash/shelf/shelf_button.h

 // Copyright 2013 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_SHELF_SHELF_BUTTON_H_
-#define ASH_COMMON_SHELF_SHELF_BUTTON_H_
+#ifndef ASH_SHELF_SHELF_BUTTON_H_
+#define ASH_SHELF_SHELF_BUTTON_H_
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 #include "ui/gfx/shadow_value.h"
 #include "ui/views/controls/button/custom_button.h"
 
 namespace views {
 class ImageView;
 }
 
@@ skipping 102 matching lines @@
 
   // If non-null the destuctor sets this to true. This is set while the menu is
   // showing and used to detect if the menu was deleted while running.
   bool* destroyed_flag_;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfButton);
 };
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SHELF_SHELF_BUTTON_H_
+#endif  // ASH_SHELF_SHELF_BUTTON_H_