Remove the last of the TLS fallback code.

net/base/net_error_list.h

 // Copyright (c) 2012 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.
 
 // This file intentionally does not have header guards, it's included
 // inside a macro to generate enum values.
 
 // This file contains the list of network errors.
 
 //
@@ skipping 296 matching lines @@
 
 // There are too many pending WebSocketJob instances, so the new job was not
 // pushed to the queue.
 NET_ERROR(WS_THROTTLE_QUEUE_TOO_LARGE, -154)
 
 // Error -155 was removed (TOO_MANY_SOCKET_STREAMS)
 
 // The SSL server certificate changed in a renegotiation.
 NET_ERROR(SSL_SERVER_CERT_CHANGED, -156)
 
-// The SSL server indicated that an unnecessary TLS version fallback was
-// performed.
-NET_ERROR(SSL_INAPPROPRIATE_FALLBACK, -157)
+// Error -157 was removed (SSL_INAPPROPRIATE_FALLBACK).
 
 // Certificate Transparency: All Signed Certificate Timestamps failed to verify.
 NET_ERROR(CT_NO_SCTS_VERIFIED_OK, -158)
 
 // The SSL server sent us a fatal unrecognized_name alert.
 NET_ERROR(SSL_UNRECOGNIZED_NAME_ALERT, -159)
 
 // Failed to set the socket's receive buffer size as requested.
 NET_ERROR(SOCKET_SET_RECEIVE_BUFFER_SIZE_ERROR, -160)
 
 // Failed to set the socket's send buffer size as requested.
 NET_ERROR(SOCKET_SET_SEND_BUFFER_SIZE_ERROR, -161)
 
 // Failed to set the socket's receive buffer size as requested, despite success
 // return code from setsockopt.
 NET_ERROR(SOCKET_RECEIVE_BUFFER_SIZE_UNCHANGEABLE, -162)
 
 // Failed to set the socket's send buffer size as requested, despite success
 // return code from setsockopt.
 NET_ERROR(SOCKET_SEND_BUFFER_SIZE_UNCHANGEABLE, -163)
 
 // Failed to import a client certificate from the platform store into the SSL
 // library.
 NET_ERROR(SSL_CLIENT_AUTH_CERT_BAD_FORMAT, -164)
 
-// The SSL server requires falling back to a version older than the configured
-// minimum fallback version, and thus fallback failed.
-NET_ERROR(SSL_FALLBACK_BEYOND_MINIMUM_VERSION, -165)
+// Error -165 was removed (SSL_FALLBACK_BEYOND_MINIMUM_VERSION).
 
 // Resolving a hostname to an IP address list included the IPv4 address
 // "127.0.53.53". This is a special IP address which ICANN has recommended to
 // indicate there was a name collision, and alert admins to a potential
 // problem.
 NET_ERROR(ICANN_NAME_COLLISION, -166)
 
 // The SSL server presented a certificate which could not be decoded. This is
 // not a certificate error code as no X509Certificate object is available. This
 // error is fatal.
@@ skipping 478 matching lines @@
 NET_ERROR(DNS_TIMED_OUT, -803)
 
 // The entry was not found in cache, for cache-only lookups.
 NET_ERROR(DNS_CACHE_MISS, -804)
 
 // Suffix search list rules prevent resolution of the given host name.
 NET_ERROR(DNS_SEARCH_EMPTY, -805)
 
 // Failed to sort addresses according to RFC3484.
 NET_ERROR(DNS_SORT_ERROR, -806)