chrome/browser/chromeos/system/system_clock_observer.h

   1 // Copyright 2015 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 CHROME_BROWSER_CHROMEOS_SYSTEM_SYSTEM_CLOCK_OBSERVER_H_
   6 #define CHROME_BROWSER_CHROMEOS_SYSTEM_SYSTEM_CLOCK_OBSERVER_H_
   7
   8 #include "base/macros.h"
   9
  10 namespace chromeos {
  11 namespace system {
  12
  13 class SystemClock;
  14
  15 // This is observer for chromeos::system::SystemClock .
  16 class SystemClockObserver {
  17  public:
  18   virtual ~SystemClockObserver();
  19   virtual void OnSystemClockChanged(SystemClock*) = 0;
  20 };
  21
  22 }  // namespace system
  23 }  // namespace chromeos
  24
  25 #endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_SYSTEM_CLOCK_OBSERVER_H_