Explicitly disallow multi-packet CHLOs. Protected by FLAGS_quic_disallow_multi_packet_chlo, default…

net/quic/quic_flags.cc

 // Copyright 2014 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_flags.h"
 
 // When true, the use time based loss detection instead of nack.
 bool FLAGS_quic_use_time_loss_detection = false;
 
 // If true, it will return as soon as an error is detected while validating
@@ skipping 125 matching lines @@
 // flags.
 bool FLAGS_quic_use_old_public_reset_packets = true;
 
 // Ignore the peer's recieve buffer size and instead set max CWND based on the
 // amount of data the sender is willing to have in flight.
 bool FLAGS_quic_ignore_srbf = true;
 
 // Allow the NPRR connection option which reduces QUIC\'s pacing rate during
 // recovery instead of PRR.
 bool FLAGS_quic_allow_noprr = true;
+
+// If true, multi-packet CHLOs are explicitly disallowed.
+bool FLAGS_quic_disallow_multi_packet_chlo = true;