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 BASE_TIME_DEFAULT_CLOCK_H_
6 #define BASE_TIME_DEFAULT_CLOCK_H_
7 
8 #include "base/base_export.h"
9 #include "base/compiler_specific.h"
10 #include "base/time/clock.h"
11 
12 namespace base {
13 
14 // DefaultClock is a Clock implementation that uses Time::Now().
15 class BASE_EXPORT DefaultClock : public Clock {
16  public:
17   ~DefaultClock() override;
18 
19   // Simply returns Time::Now().
20   Time Now() const override;
21 
22   // Returns a shared instance of DefaultClock. This is thread-safe.
23   static DefaultClock* GetInstance();
24 };
25 
26 }  // namespace base
27 
28 #endif  // BASE_TIME_DEFAULT_CLOCK_H_
29