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Side by Side Diff: base/time/tick_clock.h

Issue 985003004: base: Fix/add header #ifndef guards. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: headers: . Created 5 years, 9 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef BASE_TICK_CLOCK_H_ 5 #ifndef BASE_TIME_TICK_CLOCK_H_
6 #define BASE_TICK_CLOCK_H_ 6 #define BASE_TIME_TICK_CLOCK_H_
7 7
8 #include "base/base_export.h" 8 #include "base/base_export.h"
9 #include "base/time/time.h" 9 #include "base/time/time.h"
10 10
11 namespace base { 11 namespace base {
12 12
13 // A TickClock is an interface for objects that vend TimeTicks. It is 13 // A TickClock is an interface for objects that vend TimeTicks. It is
14 // intended to be able to test the behavior of classes with respect to 14 // intended to be able to test the behavior of classes with respect to
15 // non-decreasing time. 15 // non-decreasing time.
16 // 16 //
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30 30
31 // NowTicks() must be safe to call from any thread. The caller may 31 // NowTicks() must be safe to call from any thread. The caller may
32 // assume that NowTicks() is monotonic (but not strictly monotonic). 32 // assume that NowTicks() is monotonic (but not strictly monotonic).
33 // In other words, the returned TimeTicks will never decrease with 33 // In other words, the returned TimeTicks will never decrease with
34 // time, although they might "stand still". 34 // time, although they might "stand still".
35 virtual TimeTicks NowTicks() = 0; 35 virtual TimeTicks NowTicks() = 0;
36 }; 36 };
37 37
38 } // namespace base 38 } // namespace base
39 39
40 #endif // BASE_TICK_CLOCK_H_ 40 #endif // BASE_TIME_TICK_CLOCK_H_
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