// 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 UI_APP_LIST_VIEWS_APP_LIST_VIEW_OBSERVER_H_ #define UI_APP_LIST_VIEWS_APP_LIST_VIEW_OBSERVER_H_ namespace views { class Widget; } namespace app_list { class AppListViewObserver { public: virtual void OnActivationChanged(views::Widget* widget, bool active) = 0; protected: virtual ~AppListViewObserver() {} }; } // namespace app_list #endif // UI_APP_LIST_VIEWS_APP_LIST_VIEW_OBSERVER_H_