Make net pass "gn check"

net/url_request/url_request_context_builder.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 class is useful for building a simple URLRequestContext. Most creators
 // of new URLRequestContexts should use this helper class to construct it. Call
 // any configuration params, and when done, invoke Build() to construct the
 // URLRequestContext. This URLRequestContext will own all its own storage.
 //
 // URLRequestContextBuilder and its associated params classes are initially
@@ skipping 331 matching lines @@
   HttpNetworkSessionParams http_network_session_params_;
   base::FilePath transport_security_persister_path_;
   NetLog* net_log_;
   scoped_ptr<HostResolver> host_resolver_;
   scoped_ptr<ChannelIDService> channel_id_service_;
   scoped_ptr<ProxyConfigService> proxy_config_service_;
   scoped_ptr<ProxyService> proxy_service_;
   scoped_ptr<NetworkDelegate> network_delegate_;
   scoped_ptr<ProxyDelegate> proxy_delegate_;
   scoped_ptr<CookieStore> cookie_store_;
+#if !defined(DISABLE_FTP_SUPPORT)
   scoped_ptr<FtpTransactionFactory> ftp_transaction_factory_;
+#endif
   scoped_ptr<HttpAuthHandlerFactory> http_auth_handler_factory_;
   scoped_ptr<CertVerifier> cert_verifier_;
   std::vector<scoped_ptr<URLRequestInterceptor>> url_request_interceptors_;
   scoped_ptr<HttpServerProperties> http_server_properties_;
   std::map<std::string, scoped_ptr<URLRequestJobFactory::ProtocolHandler>>
       protocol_handlers_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextBuilder);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_BUILDER_H_