gfe-relnote: Allow GFE to perform initial cwnd up and down experiment. Protected by --gfe2_reloadable_flag_quic_gfe_selected_initial_cwnd_experiments.

The minimum cwnd is 10, and the default enabled up and down experiment is 25%.

PiperOrigin-RevId: 248124804
Change-Id: Ie21685f8e35946eaa499dab935b154b928af7318
diff --git a/quic/core/quic_connection.cc b/quic/core/quic_connection.cc
index eea8618..6798f63 100644
--- a/quic/core/quic_connection.cc
+++ b/quic/core/quic_connection.cc
@@ -548,8 +548,10 @@
 }
 
 void QuicConnection::AdjustNetworkParameters(QuicBandwidth bandwidth,
-                                             QuicTime::Delta rtt) {
-  sent_packet_manager_.AdjustNetworkParameters(bandwidth, rtt);
+                                             QuicTime::Delta rtt,
+                                             bool allow_cwnd_to_decrease) {
+  sent_packet_manager_.AdjustNetworkParameters(bandwidth, rtt,
+                                               allow_cwnd_to_decrease);
 }
 
 QuicBandwidth QuicConnection::MaxPacingRate() const {