Add OVERRIDE to net/.

net/http/http_auth_handler_factory.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.
 
 #ifndef NET_HTTP_HTTP_AUTH_HANDLER_FACTORY_H_
 #define NET_HTTP_HTTP_AUTH_HANDLER_FACTORY_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 171 matching lines @@
       bool negotiate_enable_port);
 
   // Creates an auth handler by dispatching out to the registered factories
   // based on the first token in |challenge|.
   virtual int CreateAuthHandler(HttpAuth::ChallengeTokenizer* challenge,
                                 HttpAuth::Target target,
                                 const GURL& origin,
                                 CreateReason reason,
                                 int digest_nonce_count,
                                 const BoundNetLog& net_log,
-                                scoped_ptr<HttpAuthHandler>* handler);
+                                scoped_ptr<HttpAuthHandler>* handler) OVERRIDE;
 
  private:
   typedef std::map<std::string, HttpAuthHandlerFactory*> FactoryMap;
 
   FactoryMap factory_map_;
   DISALLOW_COPY_AND_ASSIGN(HttpAuthHandlerRegistryFactory);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_AUTH_HANDLER_FACTORY_H_