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

net/http/http_auth_gssapi_posix.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_GSSAPI_POSIX_H_
 #define NET_HTTP_HTTP_AUTH_GSSAPI_POSIX_H_
 #pragma once
 
 #include <gssapi.h>
 
 #include <string>
 
 #include "base/gtest_prod_util.h"
 #include "base/native_library.h"
-#include "base/string16.h"
 #include "net/base/net_export.h"
 #include "net/http/http_auth.h"
 
 namespace net {
 
 NET_EXPORT_PRIVATE extern gss_OID CHROME_GSS_C_NT_HOSTBASED_SERVICE_X;
 NET_EXPORT_PRIVATE extern gss_OID CHROME_GSS_C_NT_HOSTBASED_SERVICE;
 NET_EXPORT_PRIVATE extern gss_OID CHROME_GSS_KRB5_MECH_OID_DESC;
 
 // GSSAPILibrary is introduced so unit tests can mock the calls to the GSSAPI
@@ skipping 212 matching lines @@
 
   HttpAuth::AuthorizationResult ParseChallenge(
       HttpAuth::ChallengeTokenizer* tok);
 
   // Generates an authentication token.
   // The return value is an error code. If it's not |OK|, the value of
   // |*auth_token| is unspecified.
   // |spn| is the Service Principal Name of the server that the token is
   // being generated for.
   // If this is the first round of a multiple round scheme, credentials are
-  // obtained using |*username| and |*password|. If |username| and |password|
-  // are NULL, the default credentials are used instead.
-  int GenerateAuthToken(const string16* username,
-                        const string16* password,
+  // obtained using |*credentials|. If |credentials| is NULL, the default
+  // credentials are used instead.
+  int GenerateAuthToken(const AuthCredentials* credentials,
                         const std::wstring& spn,
                         std::string* auth_token);
 
   // Delegation is allowed on the Kerberos ticket. This allows certain servers
   // to act as the user, such as an IIS server retrieiving data from a
   // Kerberized MSSQL server.
   void Delegate();
 
  private:
   int GetNextSecurityToken(const std::wstring& spn,
                            gss_buffer_t in_token,
                            gss_buffer_t out_token);
 
   std::string scheme_;
   gss_OID gss_oid_;
   GSSAPILibrary* library_;
   std::string decoded_server_auth_token_;
   ScopedSecurityContext scoped_sec_context_;
   bool can_delegate_;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_AUTH_GSSAPI_POSIX_H_