Cleanup: Use AUTH_SCHEME enum instead of a string.

net/http/http_auth_handler_ntlm.cc

 // Copyright (c) 2010 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/http/http_auth_handler_ntlm.h"
 
 #if !defined(NTLM_SSPI)
 #include "base/base64.h"
 #endif
 #include "base/logging.h"
@@ skipping 75 matching lines @@
   if (!base64_rv) {
     LOG(ERROR) << "Unexpected problem Base64 encoding.";
     return ERR_UNEXPECTED;
   }
   *auth_token = std::string("NTLM ") + encode_output;
   return OK;
 #endif
 }
 
 bool HttpAuthHandlerNTLM::Init(HttpAuth::ChallengeTokenizer* tok) {
-  auth_scheme_ = AUTH_SCHEME_NTLM;
-  scheme_ = "ntlm";
+  auth_scheme_ = HttpAuth::AUTH_SCHEME_NTLM;
   score_ = 3;
   properties_ = ENCRYPTS_IDENTITY | IS_CONNECTION_BASED;
 
   return ParseChallenge(tok, true) == HttpAuth::AUTHORIZATION_RESULT_ACCEPT;
 }
 
 HttpAuth::AuthorizationResult HttpAuthHandlerNTLM::HandleAnotherChallenge(
     HttpAuth::ChallengeTokenizer* challenge) {
   return ParseChallenge(challenge, false);
 }
@@ skipping 35 matching lines @@
 // static
 std::wstring HttpAuthHandlerNTLM::CreateSPN(const GURL& origin) {
   // The service principal name of the destination server.  See
   // http://msdn.microsoft.com/en-us/library/ms677949%28VS.85%29.aspx
   std::wstring target(L"HTTP/");
   target.append(ASCIIToWide(GetHostAndPort(origin)));
   return target;
 }
 
 }  // namespace net