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_ 24
