Ignore invalid error code in QuicFramer when process GoAway, ConnectionClose,

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 103 matching lines @@
 // Try to use the socket timestamp to determine the time a packet was
 // received instead of Now().
 bool FLAGS_quic_use_socket_timestamp = true;
 
 // If true, handling of errors from invalid stream frames is done in
 // one place in QuicStreamSequencer::OnStreamFrame.
 bool FLAGS_quic_consolidate_onstreamframe_errors = true;
 
 // Resend 0RTT requests in response to an REJ that re-establishes encryption.
 bool FLAGS_quic_reply_to_rej = true;
+
+// If true, QuicFramer will ignore invalid error codes when processing GoAway,
+// ConnectionClose, and RstStream frames.
+bool FLAGS_quic_ignore_invalid_error_code = true;