Limit QUIC's send algorithm max CWND by the peer's receive buffer and

net/quic/congestion_control/tcp_cubic_bytes_sender.h

 // Copyright (c) 2015 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.
 
 // TCP cubic send side congestion algorithm, emulates the behavior of TCP cubic.
 
 #ifndef NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_BYTES_SENDER_H_
 #define NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_BYTES_SENDER_H_
 
 #include "base/basictypes.h"
@@ skipping 25 matching lines @@
                       QuicConnectionStats* stats);
   ~TcpCubicBytesSender() override;
 
   // Start implementation of SendAlgorithmInterface.
   void SetFromConfig(const QuicConfig& config,
                      Perspective perspective,
                      bool using_pacing) override;
   bool ResumeConnectionState(
       const CachedNetworkParameters& cached_network_params) override;
   void SetNumEmulatedConnections(int num_connections) override;
+  void SetMaxCongestionWindow(QuicByteCount max_congestion_window) override;
   void OnCongestionEvent(bool rtt_updated,
                          QuicByteCount bytes_in_flight,
                          const CongestionVector& acked_packets,
                          const CongestionVector& lost_packets) override;
   bool OnPacketSent(QuicTime sent_time,
                     QuicByteCount bytes_in_flight,
                     QuicPacketSequenceNumber sequence_number,
                     QuicByteCount bytes,
                     HasRetransmittableData is_retransmittable) override;
   void OnRetransmissionTimeout(bool packets_retransmitted) override;
@@ skipping 71 matching lines @@
   bool last_cutback_exited_slowstart_;
 
   const QuicClock* clock_;
 
   DISALLOW_COPY_AND_ASSIGN(TcpCubicBytesSender);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CONGESTION_CONTROL_TCP_CUBIC_BYTES_SENDER_H_