Repo created

TMessagesProj/jni/voip/webrtc/base/time/default_tick_clock.h

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+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_TIME_DEFAULT_TICK_CLOCK_H_
+#define BASE_TIME_DEFAULT_TICK_CLOCK_H_
+
+#include "base/base_export.h"
+#include "base/time/tick_clock.h"
+
+namespace base {
+
+// DefaultTickClock is a TickClock implementation that uses TimeTicks::Now().
+// This is typically used by components that expose a SetTickClockForTesting().
+// Note: Overriding Time/TimeTicks altogether via
+// TaskEnvironment::TimeSource::MOCK_TIME is now the preferred of
+// overriding time in unit tests. As such, there shouldn't be many new use cases
+// for TickClock/DefaultTickClock anymore.
+class BASE_EXPORT DefaultTickClock : public TickClock {
+ public:
+  ~DefaultTickClock() override;
+
+  // Simply returns TimeTicks::Now().
+  TimeTicks NowTicks() const override;
+
+  // Returns a shared instance of DefaultTickClock. This is thread-safe.
+  static const DefaultTickClock* GetInstance();
+};
+
+}  // namespace base
+
+#endif  // BASE_TIME_DEFAULT_TICK_CLOCK_H_