Landing Recent QUIC changes until 2016-07-02 02:45 UTC

net/quic/quic_sustained_bandwidth_recorder.cc

 // Copyright 2014 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 "net/quic/quic_sustained_bandwidth_recorder.h"
 
 #include "base/logging.h"
 #include "net/quic/quic_bandwidth.h"
 #include "net/quic/quic_time.h"
 
@@ skipping 23 matching lines @@
   if (!is_recording_) {
     // This is the first estimate of a new recording period.
     start_time_ = estimate_time;
     is_recording_ = true;
     DVLOG(1) << "Started recording at: " << start_time_.ToDebuggingValue();
     return;
   }
 
   // If we have been recording for at least 3 * srtt, then record the latest
   // bandwidth estimate as a valid sustained bandwidth estimate.
-  if (estimate_time.Subtract(start_time_) >= srtt.Multiply(3)) {
+  if (estimate_time - start_time_ >= 3 * srtt) {
     has_estimate_ = true;
     bandwidth_estimate_recorded_during_slow_start_ = in_slow_start;
     bandwidth_estimate_ = bandwidth;
     DVLOG(1) << "New sustained bandwidth estimate (KBytes/s): "
              << bandwidth_estimate_.ToKBytesPerSecond();
   }
 
   // Check for an increase in max bandwidth.
   if (bandwidth > max_bandwidth_estimate_) {
     max_bandwidth_estimate_ = bandwidth;
     max_bandwidth_timestamp_ = wall_time.ToUNIXSeconds();
     DVLOG(1) << "New max bandwidth estimate (KBytes/s): "
              << max_bandwidth_estimate_.ToKBytesPerSecond();
   }
 }
 
 }  // namespace net