Landing Recent QUIC changes until Sun Apr 9 16:12:55

net/quic/core/congestion_control/pacing_sender.h

 // Copyright (c) 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.
 //
 // A send algorithm that adds pacing on top of an another send algorithm.
 // It uses the underlying sender's pacing rate to schedule packets.
 // It also takes into consideration the expected granularity of the underlying
 // alarm to ensure that alarms are not set too aggressively, and err towards
 // sending packets too early instead of too late.
 
@@ skipping 27 matching lines @@
   void set_max_pacing_rate(QuicBandwidth max_pacing_rate) {
     max_pacing_rate_ = max_pacing_rate;
   }
 
   void OnCongestionEvent(
       bool rtt_updated,
       QuicByteCount bytes_in_flight,
       QuicTime event_time,
       const SendAlgorithmInterface::CongestionVector& acked_packets,
       const SendAlgorithmInterface::CongestionVector& lost_packets);
+
   bool OnPacketSent(QuicTime sent_time,
                     QuicByteCount bytes_in_flight,
                     QuicPacketNumber packet_number,
                     QuicByteCount bytes,
                     HasRetransmittableData is_retransmittable);
-  QuicTime::Delta TimeUntilSend(QuicTime now,
-                                QuicByteCount bytes_in_flight) const;
+
+  QuicTime::Delta TimeUntilSend(QuicTime now, QuicByteCount bytes_in_flight);
+
   QuicBandwidth PacingRate(QuicByteCount bytes_in_flight) const;
 
  private:
   // Underlying sender. Not owned.
   SendAlgorithmInterface* sender_;
   // If not QuicBandidth::Zero, the maximum rate the PacingSender will use.
   QuicBandwidth max_pacing_rate_;
 
   // Number of unpaced packets to be sent before packets are delayed.
   uint32_t burst_tokens_;
   // Send time of the last packet considered delayed.
   QuicTime last_delayed_packet_sent_time_;
   QuicTime ideal_next_packet_send_time_;  // When can the next packet be sent.
-  mutable bool was_last_send_delayed_;  // True when the last send was delayed.
+  bool was_last_send_delayed_;  // True when the last send was delayed.
 
   DISALLOW_COPY_AND_ASSIGN(PacingSender);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_CONGESTION_CONTROL_PACING_SENDER_H_