Deprecate --quic_stateless_version_negotiation

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 67 matching lines @@
 
 // If true, QUIC should correctly report if it supports ChaCha20. Otherwise,
 // QUIC will lie and claim that it does not support ChaCha20. The primary use
 // case for this is places where ChaCha20 is prohibitively expensive compared to
 // AES-GCM.
 bool FLAGS_quic_crypto_server_config_default_has_chacha20 = true;
 
 // If true, QUIC will use newly refactored TCP sender code.
 bool FLAGS_quic_use_new_tcp_sender = true;
 
-// If true, the QUIC dispatcher will directly send version negotiation packets
-// without needing to create a QUIC session first.
-bool FLAGS_quic_stateless_version_negotiation = true;
-
 // If true, QUIC connections will defer responding to ACKs to their send alarms.
 bool FLAGS_quic_connection_defer_ack_response = true;
 
 // Resend 0RTT requests in response to an REJ that re-establishes encryption.
 bool FLAGS_quic_reply_to_rej = true;
 
 // If true, QUIC connections can do bandwidth resumption with an initial window
 // of < 10 packets.
 bool FLAGS_quic_no_lower_bw_resumption_limit = true;
 
@@ skipping 20 matching lines @@
 // Add the ability for QUIC's time based loss detection to increase it's
 // threshold after spurious losses.
 bool FLAGS_quic_adaptive_loss_recovery = true;
 
 // If true, enable auto tuning by default (server side).
 bool FLAGS_quic_enable_autotune_by_default = true;
 
 // Use largest acked in the most recent ack instead of largest acked ever in
 // loss recovery.
 bool FLAGS_quic_loss_recovery_use_largest_acked = true;