Deprecate --gfe2_reloadable_flag_quic_supports_trailers

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 78 matching lines @@
 // If true, Close the connection instead of writing unencrypted stream data.
 bool FLAGS_quic_never_write_unencrypted_data = true;
 
 // If true, clear the FEC group instead of sending it with ENCRYPTION_NONE.
 // Close the connection if we ever try to serialized unencrypted FEC.
 bool FLAGS_quic_no_unencrypted_fec = true;
 
 // If true, reject any incoming QUIC which does not have the FIXD tag.
 bool FLAGS_quic_require_fix = true;
 
-// If true, QUIC supports sending trailers from Server to Client.
-bool FLAGS_quic_supports_trailers = true;
-
 // If true, headers stream will support receiving PUSH_PROMISE frames.
 bool FLAGS_quic_supports_push_promise = false;
 
 // Enable counters for incoming/outgoing streams which are used as condition
 // check while creating a new stream.
 bool FLAGS_quic_distinguish_incoming_outgoing_streams = true;
 
 // If true, QUIC servers will attempt to validate a client's source
 // address token using the primary config, even if no server config id
 // is present in the client hello.
@@ skipping 34 matching lines @@
 // If true, always log the cached network parameters, regardless of whether
 // bandwidth-resumption has been enabled.
 bool FLAGS_quic_log_received_parameters = true;
 
 // If true, QUIC will use newly refactored TCP sender code.
 bool FLAGS_quic_use_new_tcp_sender = true;
 
 // Saves the initial subkey secret in QUIC crypto when deriving keys from the
 // initial premaster secret.
 bool FLAGS_quic_save_initial_subkey_secret = true;