Disable FTP on iOS

net/url_request/url_request_context.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 represents contextual information (cookies, cache, etc.)
 // that's useful when processing resource requests.
 // The class is reference-counted so that it can be cleaned up after any
 // requests that are using it have been completed.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_
@@ skipping 142 matching lines @@
 
   TransportSecurityState* transport_security_state() const {
       return transport_security_state_;
   }
   void set_transport_security_state(
       TransportSecurityState* state) {
     transport_security_state_ = state;
   }
 
   // Gets the FTP authentication cache for this context.
-  FtpAuthCache* ftp_auth_cache() const { return ftp_auth_cache_.get(); }
+  FtpAuthCache* ftp_auth_cache() const {
+#if !defined(DISABLE_FTP_SUPPORT)
+    return ftp_auth_cache_.get();
+#else
+    return NULL;
+#endif
+  }
 
   // Gets the value of 'Accept-Charset' header field.
   const std::string& accept_charset() const { return accept_charset_; }
   void set_accept_charset(const std::string& accept_charset) {
     accept_charset_ = accept_charset;
   }
 
   // Gets the value of 'Accept-Language' header field.
   const std::string& accept_language() const { return accept_language_; }
   void set_accept_language(const std::string& accept_language) {
@@ skipping 46 matching lines @@
   CertVerifier* cert_verifier_;
   ServerBoundCertService* server_bound_cert_service_;
   FraudulentCertificateReporter* fraudulent_certificate_reporter_;
   HttpAuthHandlerFactory* http_auth_handler_factory_;
   ProxyService* proxy_service_;
   scoped_refptr<SSLConfigService> ssl_config_service_;
   NetworkDelegate* network_delegate_;
   HttpServerProperties* http_server_properties_;
   scoped_refptr<CookieStore> cookie_store_;
   TransportSecurityState* transport_security_state_;
+#if !defined(DISABLE_FTP_SUPPORT)
   scoped_ptr<FtpAuthCache> ftp_auth_cache_;
+#endif
   std::string accept_language_;
   std::string accept_charset_;
   // The charset of the referrer where this request comes from. It's not
   // used in communication with a server but is used to construct a suggested
   // filename for file download.
   std::string referrer_charset_;
   HttpTransactionFactory* http_transaction_factory_;
   FtpTransactionFactory* ftp_transaction_factory_;
   const URLRequestJobFactory* job_factory_;
   URLRequestThrottlerManager* throttler_manager_;
 
   // ---------------------------------------------------------------------------
   // Important: When adding any new members below, consider whether they need to
   // be added to CopyFrom.
   // ---------------------------------------------------------------------------
 
   scoped_ptr<std::set<const URLRequest*> > url_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContext);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_