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Side by Side Diff: media/cast/test/skewed_tick_clock.h

Issue 623263003: replace OVERRIDE and FINAL with override and final in media/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 6 years, 2 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 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 CAST_MEDIA_TEST_SKEWED_TICK_CLOCK_H 5 #ifndef CAST_MEDIA_TEST_SKEWED_TICK_CLOCK_H
6 #define CAST_MEDIA_TEST_SKEWED_TICK_CLOCK_H 6 #define CAST_MEDIA_TEST_SKEWED_TICK_CLOCK_H
7 7
8 #include "base/time/tick_clock.h" 8 #include "base/time/tick_clock.h"
9 #include "base/time/time.h" 9 #include "base/time/time.h"
10 10
11 namespace media { 11 namespace media {
12 namespace cast { 12 namespace cast {
13 namespace test { 13 namespace test {
14 14
15 // Wraps a base::TickClock, and lets you change the speed and offset 15 // Wraps a base::TickClock, and lets you change the speed and offset
16 // of time compared to the wrapped clock. See SetSkew for how usage. 16 // of time compared to the wrapped clock. See SetSkew for how usage.
17 class SkewedTickClock : public base::TickClock { 17 class SkewedTickClock : public base::TickClock {
18 public: 18 public:
19 // Does not take ownership of |clock_|. 19 // Does not take ownership of |clock_|.
20 explicit SkewedTickClock(base::TickClock* clock_); 20 explicit SkewedTickClock(base::TickClock* clock_);
21 // |skew| > 1.0 means clock runs faster. 21 // |skew| > 1.0 means clock runs faster.
22 // |offset| > 0 means clock returns times from the future. 22 // |offset| > 0 means clock returns times from the future.
23 // Note, |offset| is cumulative. 23 // Note, |offset| is cumulative.
24 // Also note that changing the skew will never make the clock 24 // Also note that changing the skew will never make the clock
25 // jump forwards or backwards, only changing the offset will 25 // jump forwards or backwards, only changing the offset will
26 // do that. 26 // do that.
27 void SetSkew(double skew, base::TimeDelta offset); 27 void SetSkew(double skew, base::TimeDelta offset);
28 virtual base::TimeTicks NowTicks() OVERRIDE; 28 virtual base::TimeTicks NowTicks() override;
29 29
30 private: 30 private:
31 base::TimeTicks SkewTicks(base::TimeTicks now); 31 base::TimeTicks SkewTicks(base::TimeTicks now);
32 base::TickClock* clock_; // Not owned. 32 base::TickClock* clock_; // Not owned.
33 double skew_; 33 double skew_;
34 base::TimeTicks last_skew_set_time_; 34 base::TimeTicks last_skew_set_time_;
35 base::TimeTicks skew_clock_at_last_set_; 35 base::TimeTicks skew_clock_at_last_set_;
36 36
37 DISALLOW_COPY_AND_ASSIGN(SkewedTickClock); 37 DISALLOW_COPY_AND_ASSIGN(SkewedTickClock);
38 }; 38 };
39 39
40 } // namespace test 40 } // namespace test
41 } // namespace cast 41 } // namespace cast
42 } // namespace media 42 } // namespace media
43 43
44 #endif // CAST_MEDIA_TEST_SKEWED_TICK_CLOCK_H 44 #endif // CAST_MEDIA_TEST_SKEWED_TICK_CLOCK_H
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