Race Create vs SendRequest on cache misses.

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.
 
 // This file contains the list of network errors.
 
 //
@@ skipping 535 matching lines @@
 
 // The disk cache is unable to create this entry.
 NET_ERROR(CACHE_CREATE_FAILURE, -405)
 
 // Multiple transactions are racing to create disk cache entries. This is an
 // internal error returned from the HttpCache to the HttpCacheTransaction that
 // tells the transaction to restart the entry-creation logic because the state
 // of the cache has changed.
 NET_ERROR(CACHE_RACE, -406)
 
+// The disk cache tried to race creates against network transactions, and data
+// arrived from the network transaction before the entry was created on disk.
+NET_ERROR(CACHE_CREATE_RACE_FAILED, -507)
+
 // The server's response was insecure (e.g. there was a cert error).
 NET_ERROR(INSECURE_RESPONSE, -501)
 
 // The server responded to a <keygen> with a generated client cert that we
 // don't have the matching private key for.
 NET_ERROR(NO_PRIVATE_KEY_FOR_CERT, -502)
 
 // An error adding to the OS certificate database (e.g. OS X Keychain).
 NET_ERROR(ADD_USER_CERT_FAILED, -503)
 
@@ skipping 91 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)