Land Recent QUIC Changes.

net/quic/congestion_control/send_algorithm_interface.h

 // Copyright (c) 2012 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.
 //
 // The pure virtual class for send side congestion control algorithm.
 
 #ifndef NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_
 #define NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_
 
 #include <algorithm>
@@ skipping 45 matching lines @@
   virtual void SetMaxPacketSize(QuicByteCount max_packet_size) = 0;
 
   // Called when we receive congestion feedback from remote peer.
   virtual void OnIncomingQuicCongestionFeedbackFrame(
       const QuicCongestionFeedbackFrame& feedback,
       QuicTime feedback_receive_time,
       const SentPacketsMap& sent_packets) = 0;
 
   // Called for each received ACK, with sequence number from remote peer.
   virtual void OnPacketAcked(QuicPacketSequenceNumber acked_sequence_number,
-                             QuicByteCount acked_bytes,
-                             QuicTime::Delta rtt) = 0;
+                             QuicByteCount acked_bytes) = 0;
 
   // Indicates a loss event of one packet. |sequence_number| is the
   // sequence number of the lost packet.
   virtual void OnPacketLost(QuicPacketSequenceNumber sequence_number,
                             QuicTime ack_receive_time) = 0;
 
   // Inform that we sent x bytes to the wire, and if that was a retransmission.
   // Returns true if the packet should be tracked by the congestion manager,
   // false otherwise. This is used by implementations such as tcp_cubic_sender
   // that do not count outgoing ACK packets against the congestion window.
@@ skipping 16 matching lines @@
   virtual QuicTime::Delta TimeUntilSend(
       QuicTime now,
       TransmissionType transmission_type,
       HasRetransmittableData has_retransmittable_data,
       IsHandshake handshake) = 0;
 
   // What's the current estimated bandwidth in bytes per second.
   // Returns 0 when it does not have an estimate.
   virtual QuicBandwidth BandwidthEstimate() const = 0;
 
+  // Updates the smoothed RTT based on a new sample.
+  virtual void UpdateRtt(QuicTime::Delta rtt_sample) = 0;
+
   // TODO(satyamshekhar): Monitor MinRtt.
   virtual QuicTime::Delta SmoothedRtt() const = 0;
 
   // Get the send algorithm specific retransmission delay, called RTO in TCP,
   // Note 1: the caller is responsible for sanity checking this value.
   // Note 2: this will return zero if we don't have enough data for an estimate.
   virtual QuicTime::Delta RetransmissionDelay() const = 0;
 
   // Returns the size of the current congestion window in bytes.  Note, this is
   // not the *available* window.  Some send algorithms may not use a congestion
   // window and will return 0.
   virtual QuicByteCount GetCongestionWindow() const = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CONGESTION_CONTROL_SEND_ALGORITHM_INTERFACE_H_