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| 1 // Copyright (c) 2012 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_COMMON_SYSTEM_DATE_CLOCK_OBSERVER_H_ | |
| 6 #define ASH_COMMON_SYSTEM_DATE_CLOCK_OBSERVER_H_ | |
| 7 | |
| 8 #include "ash/ash_export.h" | |
| 9 | |
| 10 namespace ash { | |
| 11 | |
| 12 class ASH_EXPORT ClockObserver { | |
| 13 public: | |
| 14 virtual ~ClockObserver() {} | |
| 15 | |
| 16 virtual void OnDateFormatChanged() = 0; | |
| 17 virtual void OnSystemClockTimeUpdated() = 0; | |
| 18 virtual void OnSystemClockCanSetTimeChanged(bool can_set_time) = 0; | |
| 19 | |
| 20 // Force a refresh (e.g. after the system is resumed). | |
| 21 virtual void Refresh() = 0; | |
| 22 }; | |
| 23 | |
| 24 } // namespace ash | |
| 25 | |
| 26 #endif // ASH_COMMON_SYSTEM_DATE_CLOCK_OBSERVER_H_ | |
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