fix a problem that android cannot download files with basic authentication

net/url_request/url_request_ftp_job.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.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_FTP_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_FTP_JOB_H_
 
 #include <string>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 51 matching lines @@
   void OnStartCompletedAsync(int result);
   void OnReadCompleted(int result);
 
   void RestartTransactionWithAuth();
 
   void LogFtpServerType(char server_type);
 
   // Overridden from URLRequestJob:
   virtual LoadState GetLoadState() const OVERRIDE;
   virtual bool NeedsAuth() OVERRIDE;
+  virtual bool HasAuth() const OVERRIDE;
   virtual void GetAuthChallengeInfo(
       scoped_refptr<AuthChallengeInfo>* auth_info) OVERRIDE;
   virtual void SetAuth(const AuthCredentials& credentials) OVERRIDE;
   virtual void CancelAuth() OVERRIDE;
 
   // TODO(ibrar):  Yet to give another look at this function.
   virtual UploadProgress GetUploadProgress() const OVERRIDE;
   virtual bool ReadRawData(IOBuffer* buf,
                            int buf_size,
                            int *bytes_read) OVERRIDE;
@@ skipping 18 matching lines @@
 
   FtpTransactionFactory* ftp_transaction_factory_;
   FtpAuthCache* ftp_auth_cache_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestFtpJob);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_FTP_JOB_H_