commit be83ecd3e0f252545e7afdb08342b25a6399da6a
author fayang <fayang@google.com> Fri Apr 26 13:58:09 2019 -0700
committer Copybara-Service <copybara-worker@google.com> Fri Apr 26 15:48:29 2019 -0700
tree 25ffe4633c1bdf67c04f47307cc08f964fc3300f
parent 892f1f40b41ef541c106120abcd5a79975e21c66

gfe-relnote: In QUIC, adjust cwnd when doing bandwidth resumption in BBR. Protected by gfe2_reloadable_flag_quic_fix_bbr_cwnd_in_bandwidth_resumption.

PiperOrigin-RevId: 245482154
Change-Id: I0bfa7b414dc369925ab55438894b1579f91d0459

quic/core/quic_sent_packet_manager.cc

diff --git a/quic/core/quic_sent_packet_manager.cc b/quic/core/quic_sent_packet_manager.cc
index ad5f297..21dbc14 100644
--- a/quic/core/quic_sent_packet_manager.cc
+++ b/quic/core/quic_sent_packet_manager.cc
@@ -267,9 +267,11 @@
   if (!rtt.IsZero()) {
     SetInitialRtt(rtt);
   }
+  const QuicByteCount old_cwnd = send_algorithm_->GetCongestionWindow();
   send_algorithm_->AdjustNetworkParameters(bandwidth, rtt);
   if (debug_delegate_ != nullptr) {
-    debug_delegate_->OnAdjustNetworkParameters(bandwidth, rtt);
+    debug_delegate_->OnAdjustNetworkParameters(
+        bandwidth, rtt, old_cwnd, send_algorithm_->GetCongestionWindow());
   }
 }