|  | // 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. | 
|  |  | 
|  | #include "base/time/default_tick_clock.h" | 
|  |  | 
|  | #include "base/no_destructor.h" | 
|  |  | 
|  | namespace base { | 
|  |  | 
|  | DefaultTickClock::~DefaultTickClock() = default; | 
|  |  | 
|  | TimeTicks DefaultTickClock::NowTicks() const { | 
|  | return TimeTicks::Now(); | 
|  | } | 
|  |  | 
|  | // static | 
|  | const DefaultTickClock* DefaultTickClock::GetInstance() { | 
|  | static const base::NoDestructor<DefaultTickClock> default_tick_clock; | 
|  | return default_tick_clock.get(); | 
|  | } | 
|  |  | 
|  | }  // namespace base |