Allow chrome to handle 407 auth challenges to CONNECT requests

net/base/net_error_list.h

 // Copyright (c) 2011 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.
 
 // This file contains the list of network errors.
 
 //
@@ skipping 267 matching lines @@
 // one of a set of public keys exist on the path from the leaf to the root.
 NET_ERROR(SSL_PINNED_KEY_NOT_IN_CERT_CHAIN, -150)
 
 // Server request for client certificate did not contain any types we support.
 NET_ERROR(CLIENT_AUTH_CERT_TYPE_UNSUPPORTED, -151)
 
 // Server requested one type of cert, then requested a different type while the
 // first was still being generated.
 NET_ERROR(ORIGIN_BOUND_CERT_GENERATION_TYPE_MISMATCH, -152)
 
+// The proxy does not support restarting a request on the existing connection.
+NET_ERROR(NO_KEEP_ALIVE_ON_AUTH_RESTART, -153)
+
 // Certificate error codes
 //
 // The values of certificate error codes must be consecutive.
 
 // The server responded with a certificate whose common name did not match
 // the host name.  This could mean:
 //
 // 1. An attacker has redirected our traffic to his server and is
 //    presenting a certificate for which he knows the private key.
 //
@@ skipping 349 matching lines @@
 NET_ERROR(DNS_SERVER_FAILED, -802)
 
 // DNS transaction timed out.
 NET_ERROR(DNS_TIMED_OUT, -803)
 
 // The entry was not found in cache, for cache-only lookups.
 NET_ERROR(DNS_CACHE_MISS, -804)
 
 // FIXME: Take the next number.
 NET_ERROR(PIPELINE_EVICTION, -900)