ash/shelf/shelf_icon_observer.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_SHELF_SHELF_ICON_OBSERVER_H_
   6 #define ASH_SHELF_SHELF_ICON_OBSERVER_H_
   7
   8 #include "ash/ash_export.h"
   9
  10 namespace ash {
  11
  12 class ASH_EXPORT ShelfIconObserver {
  13  public:
  14   // Invoked when any icon on shelf changes position.
  15   virtual void OnShelfIconPositionsChanged() = 0;
  16
  17  protected:
  18   virtual ~ShelfIconObserver() {}
  19 };
  20
  21 }  // namespace ash
  22
  23 #endif  // ASH_SHELF_SHELF_ICON_OBSERVER_H_