| // Copyright 2015 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 CHROME_BROWSER_CHROMEOS_SYSTEM_SYSTEM_CLOCK_OBSERVER_H_ |
| #define CHROME_BROWSER_CHROMEOS_SYSTEM_SYSTEM_CLOCK_OBSERVER_H_ |
| |
| #include "base/macros.h" |
| |
| namespace chromeos { |
| namespace system { |
| |
| class SystemClock; |
| |
| // This is observer for chromeos::system::SystemClock . |
| class SystemClockObserver { |
| public: |
| virtual ~SystemClockObserver(); |
| virtual void OnSystemClockChanged(SystemClock*) = 0; |
| }; |
| |
| } // namespace system |
| } // namespace chromeos |
| |
| #endif // CHROME_BROWSER_CHROMEOS_SYSTEM_SYSTEM_CLOCK_OBSERVER_H_ |