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

ash/shelf/overflow_bubble.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_OVERFLOW_BUBBLE_H_
-#define ASH_COMMON_SHELF_OVERFLOW_BUBBLE_H_
+#ifndef ASH_SHELF_OVERFLOW_BUBBLE_H_
+#define ASH_SHELF_OVERFLOW_BUBBLE_H_
 
 #include "base/macros.h"
 #include "ui/views/pointer_watcher.h"
 #include "ui/views/widget/widget_observer.h"
 
 namespace ui {
 class PointerEvent;
 }
 
 namespace ash {
@@ skipping 38 matching lines @@
   OverflowButton* overflow_button_;  // Owned by ShelfView.
 
   // ShelfView containing the overflow items. Owned by |bubble_|.
   ShelfView* shelf_view_;
 
   DISALLOW_COPY_AND_ASSIGN(OverflowBubble);
 };
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SHELF_OVERFLOW_BUBBLE_H_
+#endif  // ASH_SHELF_OVERFLOW_BUBBLE_H_