| // Copyright 2013 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 IOS_WEB_NAVIGATION_TIME_SMOOTHER_H_ |
| #define IOS_WEB_NAVIGATION_TIME_SMOOTHER_H_ |
| |
| #include "base/time/time.h" |
| |
| namespace web { |
| |
| // Helper class to smooth out runs of duplicate timestamps while still |
| // allowing time to jump backwards. |
| // |
| // Duplicated from NavigationControllerImpl (until we have a better |
| // idea how to handle NavigationController implementation overlap |
| // in general). |
| class TimeSmoother { |
| public: |
| // Returns |t| with possibly some time added on. |
| base::Time GetSmoothedTime(base::Time t); |
| |
| private: |
| // |low_water_mark_| is the first time in a sequence of adjusted |
| // times and |high_water_mark_| is the last. |
| base::Time low_water_mark_; |
| base::Time high_water_mark_; |
| }; |
| |
| } // namespace web |
| |
| #endif // IOS_WEB_NAVIGATION_TIME_SMOOTHER_H_ |
