Ignore the peer's receive buffer in QUIC and instead set the max CWND to 2000 packets. Protected b…

net/quic/congestion_control/send_algorithm_interface.cc

 // 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.
 
 #include "net/quic/congestion_control/send_algorithm_interface.h"
 
 #include "net/quic/congestion_control/tcp_cubic_sender_bytes.h"
 #include "net/quic/congestion_control/tcp_cubic_sender_packets.h"
 #include "net/quic/quic_flags.h"
 #include "net/quic/quic_protocol.h"
 
 namespace net {
 
 class RttStats;
 
 // Factory for send side congestion control algorithm.
 SendAlgorithmInterface* SendAlgorithmInterface::Create(
     const QuicClock* clock,
     const RttStats* rtt_stats,
     CongestionControlType congestion_control_type,
     QuicConnectionStats* stats,
     QuicPacketCount initial_congestion_window) {
-  const QuicPacketCount max_congestion_window =
+  QuicPacketCount max_congestion_window =
       (kDefaultSocketReceiveBuffer * kConservativeReceiveBufferFraction) /
       kDefaultTCPMSS;
+  if (FLAGS_quic_ignore_srbf) {
+    max_congestion_window = kDefaultMaxCongestionWindowPackets;
+  }
   switch (congestion_control_type) {
     case kCubic:
       return new TcpCubicSenderPackets(
           clock, rtt_stats, false /* don't use Reno */,
           initial_congestion_window, max_congestion_window, stats);
     case kCubicBytes:
       return new TcpCubicSenderBytes(
           clock, rtt_stats, false /* don't use Reno */,
           initial_congestion_window, max_congestion_window, stats);
     case kReno:
@@ skipping 10 matching lines @@
       return new BbrTcpSender(clock, rtt_stats, initial_congestion_window,
                               max_congestion_window, stats, true);
 #endif
       LOG(DFATAL) << "BbrTcpSender is not supported.";
       return nullptr;
   }
   return nullptr;
 }
 
 }  // namespace net