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

net/quic/quic_sent_packet_manager.cc

 // Copyright 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.
 
 #include "net/quic/quic_sent_packet_manager.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
@@ skipping 152 matching lines @@
   }
   if (FLAGS_quic_adaptive_loss_recovery &&
       config.HasReceivedConnectionOptions() &&
       ContainsQuicTag(config.ReceivedConnectionOptions(), kATIM)) {
     loss_algorithm_.reset(new GeneralLossAlgorithm(kAdaptiveTime));
   }
   if (FLAGS_quic_loss_recovery_use_largest_acked &&
       config.HasClientSentConnectionOption(kUNDO, perspective_)) {
     undo_pending_retransmits_ = true;
   }
-  if (config.HasReceivedSocketReceiveBuffer()) {
+  if (!FLAGS_quic_ignore_srbf && config.HasReceivedSocketReceiveBuffer()) {
     receive_buffer_bytes_ =
         max(kMinSocketReceiveBuffer,
             static_cast<QuicByteCount>(config.ReceivedSocketReceiveBuffer()));
     QuicByteCount max_cwnd_bytes = static_cast<QuicByteCount>(
         receive_buffer_bytes_ * kConservativeReceiveBufferFraction);
     send_algorithm_->SetMaxCongestionWindow(max_cwnd_bytes);
   }
   send_algorithm_->SetFromConfig(config, perspective_);
 
   if (network_change_visitor_ != nullptr) {
@@ skipping 839 matching lines @@
 TransmissionInfo* QuicSentPacketManager::GetMutableTransmissionInfo(
     QuicPacketNumber packet_number) {
   return unacked_packets_.GetMutableTransmissionInfo(packet_number);
 }
 
 void QuicSentPacketManager::RemoveObsoletePackets() {
   unacked_packets_.RemoveObsoletePackets();
 }
 
 }  // namespace net