// Copyright 2017 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_TRAY_ACTION_TRAY_ACTION_OBSERVER_H_ #define ASH_TRAY_ACTION_TRAY_ACTION_OBSERVER_H_ #include "ash/ash_export.h" #include "ash/public/mojom/tray_action.mojom.h" namespace ash { class ASH_EXPORT TrayActionObserver { public: virtual ~TrayActionObserver() {} // Called when action handler state changes. virtual void OnLockScreenNoteStateChanged(mojom::TrayActionState state) = 0; }; } // namespace ash #endif // ASH_TRAY_ACTION_TRAY_ACTION_OBSERVER_H_