Check in patch for pierre.lafayette, http://codereview.chromium.org/178059/sh...

net/url_request/url_request_ftp_job.cc

 // Copyright (c) 2006-2008 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/url_request/url_request_ftp_job.h"
 
 #include <windows.h>
 #include <wininet.h>
 
 #include "base/message_loop.h"
@@ skipping 44 matching lines @@
 
 // static
 URLRequestJob* URLRequestFtpJob::Factory(URLRequest* request,
                                          const std::string &scheme) {
   // Checking whether we are using new or old FTP implementation.
   if (request->context() && request->context()->ftp_transaction_factory())
     return URLRequestNewFtpJob::Factory(request, scheme);
 
   DCHECK(scheme == "ftp");
 
+  int port = request->url().IntPort();
+
   if (request->url().has_port() &&
-      !net::IsPortAllowedByFtp(request->url().IntPort()))
+      !net::IsPortAllowedByFtp(port) && !net::IsPortAllowedByOverride(port))
     return new URLRequestErrorJob(request, net::ERR_UNSAFE_PORT);
 
   return new URLRequestFtpJob(request);
 }
 
 URLRequestFtpJob::URLRequestFtpJob(URLRequest* request)
     : URLRequestInetJob(request), state_(START), is_directory_(false),
       dest_(NULL), dest_size_(0) {
 }
 
@@ skipping 471 matching lines @@
       replacements.SetPathStr(ftp_path);
 
       *location = request_->url().ReplaceComponents(replacements);
       *http_status_code = 301;  // simulate a permanent redirect
       return true;
     }
   }
 
   return false;
 }