FakeTiming added, an implementation of Timing that can be used for tests

webrtc/base/test/faketiming.h

+/*
+ *  Copyright 2016 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_BASE_TEST_FAKETIMING_H_
+#define WEBRTC_BASE_TEST_FAKETIMING_H_
+
+#include "webrtc/base/timing.h"
+#include "webrtc/base/timeutils.h"
+
+namespace rtc {
+
+class FakeTiming : public Timing {
+ public:
+  // Starts at Jan 1, 1983 (UTC).
+  FakeTiming() : now_(410227200.0) {}
+  double TimerNow() override { return now_; }
+  void AdvanceTimeSecs(double seconds) { now_ += seconds; }
+  void AdvanceTimeMillisecs(double ms) { now_ += (ms / kNumMillisecsPerSec); }
+
+ private:
+  double now_;
+};
+
+}  // namespace rtc
+
+#endif  // WEBRTC_BASE_TEST_FAKETIMING_H_