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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 UI_APP_LIST_VIEWS_APP_LIST_VIEW_OBSERVER_H_
6 #define UI_APP_LIST_VIEWS_APP_LIST_VIEW_OBSERVER_H_
7 
8 namespace views {
9 class Widget;
10 }
11 
12 namespace app_list {
13 
14 class AppListViewObserver {
15  public:
16   virtual void OnActivationChanged(views::Widget* widget, bool active) = 0;
17 
18  protected:
~AppListViewObserver()19   virtual ~AppListViewObserver() {}
20 };
21 
22 }  // namespace app_list
23 
24 #endif  // UI_APP_LIST_VIEWS_APP_LIST_VIEW_OBSERVER_H_
25