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// Copyright (c) 2012 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_SYSTEM_LOGOUT_BUTTON_LOGOUT_BUTTON_OBSERVER_H_
#define ASH_SYSTEM_LOGOUT_BUTTON_LOGOUT_BUTTON_OBSERVER_H_
namespace ash {
// Observer for the value of the kShowLogoutButtonInTray pref that determines
// whether a logout button should be shown in the system tray during a session.
class LogoutButtonObserver {
public:
virtual ~LogoutButtonObserver() {}
// Called when the value of the kShowLogoutButtonInTray pref changes.
virtual void OnShowLogoutButtonInTrayChanged(bool show) = 0;
};
} // namespace ash
#endif // ASH_SYSTEM_LOGOUT_BUTTON_LOGOUT_BUTTON_OBSERVER_H_
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