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/basictypes.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(); ~ElapsedTimer()18 virtual ~ElapsedTimer() {} 19 20 // Returns the time elapsed since object construction. 21 virtual TimeDelta Elapsed() const; 22 23 private: 24 TimeTicks begin_; 25 26 DISALLOW_COPY_AND_ASSIGN(ElapsedTimer); 27 }; 28 29 } // namespace base 30 31 #endif // BASE_TIMER_ELAPSED_TIMER_H_ 32