Update from https://crrev.com/311076

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 600 matching lines @@
 
 // The peer sent an improperly sized SPDY frame.
 NET_ERROR(SPDY_FRAME_SIZE_ERROR, -362)
 
 // Decoding or encoding of compressed SPDY headers failed.
 NET_ERROR(SPDY_COMPRESSION_ERROR, -363)
 
 // Proxy Auth Requested without a valid Client Socket Handle.
 NET_ERROR(PROXY_AUTH_REQUESTED_WITH_NO_CONNECTION, -364)
 
+// HTTP_1_1_REQUIRED error code received on HTTP/2 session.
+NET_ERROR(HTTP_1_1_REQUIRED, -365)
+
+// HTTP_1_1_REQUIRED error code received on HTTP/2 session to proxy.
+NET_ERROR(PROXY_HTTP_1_1_REQUIRED, -366)
+
 // The cache does not have the requested entry.
 NET_ERROR(CACHE_MISS, -400)
 
 // Unable to read from the disk cache.
 NET_ERROR(CACHE_READ_FAILURE, -401)
 
 // Unable to write to the disk cache.
 NET_ERROR(CACHE_WRITE_FAILURE, -402)
 
 // The operation is not supported for this entry.
@@ skipping 138 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)