Roll Chrome into Mojo.

net/proxy/proxy_config_source.cc

 // 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.
 
 #include "net/proxy/proxy_config_source.h"
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 
 namespace net {
 
 namespace {
 
-const char* kSourceNames[] = {
+const char* const kSourceNames[] = {
   "UNKNOWN",
   "SYSTEM",
   "SYSTEM FAILED",
   "GCONF",
   "GSETTINGS",
   "KDE",
   "ENV",
   "CUSTOM",
   "TEST"
 };
 static_assert(arraysize(kSourceNames) == NUM_PROXY_CONFIG_SOURCES,
               "kSourceNames has incorrect size");
 
 }  // namespace
 
 const char* ProxyConfigSourceToString(ProxyConfigSource source) {
   DCHECK_GT(NUM_PROXY_CONFIG_SOURCES, source);
   return kSourceNames[source];
 }
 
 }  // namespace net