Implement the NTLM authentication scheme by porting...

net/http/http_auth_handler_basic.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/http/http_auth_handler_basic.h"
 
 #include "base/string_util.h"
 #include "net/http/http_auth.h"
 #include "net/base/base64.h"
 
 namespace net {
 
 bool HttpAuthHandlerBasic::Init(std::string::const_iterator challenge_begin,
                                 std::string::const_iterator challenge_end) {
   scheme_ = "basic";
   score_ = 1;
+  properties_ = 0;
 
   // Verify the challenge's auth-scheme.
   HttpAuth::ChallengeTokenizer challenge_tok(challenge_begin, challenge_end);
   if (!challenge_tok.valid() ||
       !LowerCaseEqualsASCII(challenge_tok.scheme(), "basic"))
     return false;
 
   // Extract the realm.
   while (challenge_tok.GetNext()) {
     if (LowerCaseEqualsASCII(challenge_tok.name(), "realm"))
@@ skipping 10 matching lines @@
     const ProxyInfo*) {
   // TODO(eroman): is this the right encoding of username/password?
   std::string base64_username_password;
   if (!Base64Encode(WideToUTF8(username) + ":" + WideToUTF8(password),
         &base64_username_password))
     return std::string(); // FAIL
   return std::string("Basic ") + base64_username_password;
 }
 
 }  // namespace net