|  | // 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/test/simple_test_tick_clock.h" | 
|  |  | 
|  | #include "base/logging.h" | 
|  |  | 
|  | namespace base { | 
|  |  | 
|  | SimpleTestTickClock::SimpleTestTickClock() {} | 
|  |  | 
|  | SimpleTestTickClock::~SimpleTestTickClock() {} | 
|  |  | 
|  | TimeTicks SimpleTestTickClock::NowTicks() { | 
|  | AutoLock lock(lock_); | 
|  | return now_ticks_; | 
|  | } | 
|  |  | 
|  | void SimpleTestTickClock::Advance(TimeDelta delta) { | 
|  | AutoLock lock(lock_); | 
|  | DCHECK(delta >= TimeDelta()); | 
|  | now_ticks_ += delta; | 
|  | } | 
|  |  | 
|  | }  // namespace base |