1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_TIMER_ELAPSED_TIMER_H_ 6 #define BASE_TIMER_ELAPSED_TIMER_H_ 7 8 #include "base/base_export.h" 9 #include "base/macros.h" 10 #include "base/time/time.h" 11 12 namespace base { 13 14 // A simple wrapper around TimeTicks::Now(). 15 class BASE_EXPORT ElapsedTimer { 16 public: 17 ElapsedTimer(); 18 ElapsedTimer(ElapsedTimer&& other); 19 20 void operator=(ElapsedTimer&& other); 21 22 // Returns the time elapsed since object construction. 23 TimeDelta Elapsed() const; 24 25 private: 26 TimeTicks begin_; 27 28 DISALLOW_COPY_AND_ASSIGN(ElapsedTimer); 29 }; 30 31 } // namespace base 32 33 #endif // BASE_TIMER_ELAPSED_TIMER_H_ 34