ios/web/navigation/time_smoother.cc

   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 #include "ios/web/navigation/time_smoother.h"
   6
   7 namespace web {
   8
   9 // Duplicated from content/browser/web_contents/navigation_controller_impl.cc.
  10 base::Time TimeSmoother::GetSmoothedTime(base::Time t) {
  11   // If |t| is between the water marks, we're in a run of duplicates
  12   // or just getting out of it, so increase the high-water mark to get
  13   // a time that probably hasn't been used before and return it.
  14   if (low_water_mark_ <= t && t <= high_water_mark_) {
  15     high_water_mark_ += base::TimeDelta::FromMicroseconds(1);
  16     return high_water_mark_;
  17   }
  18
  19   // Otherwise, we're clear of the last duplicate run, so reset the
  20   // water marks.
  21   low_water_mark_ = high_water_mark_ = t;
  22   return t;
  23 }
  24
  25 }  // namespace web