Use AuthCredentials throughout the network stack instead of username/password.

net/http/http_auth_handler_ntlm.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_NTLM_H_
 #define NET_HTTP_HTTP_AUTH_HANDLER_NTLM_H_
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 100 matching lines @@
   virtual HttpAuth::AuthorizationResult HandleAnotherChallenge(
       HttpAuth::ChallengeTokenizer* challenge);
 
  protected:
   // This function acquires a credentials handle in the SSPI implementation.
   // It does nothing in the portable implementation.
   int InitializeBeforeFirstChallenge();
 
   virtual bool Init(HttpAuth::ChallengeTokenizer* tok);
 
-  virtual int GenerateAuthTokenImpl(const string16* username,
-                                    const string16* password,
+  virtual int GenerateAuthTokenImpl(const AuthCredentials* credentials,
                                     const HttpRequestInfo* request,
                                     OldCompletionCallback* callback,
                                     std::string* auth_token);
 
  private:
   virtual ~HttpAuthHandlerNTLM();
 
 #if defined(NTLM_PORTABLE)
   // For unit tests to override the GenerateRandom and GetHostName functions.
   // Returns the old function.
@@ skipping 18 matching lines @@
 #if defined(NTLM_SSPI)
   HttpAuthSSPI auth_sspi_;
 #endif
 
 #if defined(NTLM_PORTABLE)
   static GenerateRandomProc generate_random_proc_;
   static HostNameProc get_host_name_proc_;
 #endif
 
   string16 domain_;
-  string16 username_;
-  string16 password_;
+  AuthCredentials credentials_;
 
   // The base64-encoded string following "NTLM" in the "WWW-Authenticate" or
   // "Proxy-Authenticate" response header.
   std::string auth_data_;
 
 #if defined(NTLM_SSPI)
   URLSecurityManager* url_security_manager_;
 #endif
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_AUTH_HANDLER_NTLM_H_