Remove -Wno-unused-private-field clang warning suppression.

net/http/http_auth_handler_ntlm_win.cc

 // 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.
 
 // See "SSPI Sample Application" at
 // http://msdn.microsoft.com/en-us/library/aa918273.aspx
 // and "NTLM Security Support Provider" at
 // http://msdn.microsoft.com/en-us/library/aa923611.aspx.
 
 #include "net/http/http_auth_handler_ntlm.h"
@@ skipping 26 matching lines @@
 bool HttpAuthHandlerNTLM::AllowsDefaultCredentials() {
   if (target_ == HttpAuth::AUTH_PROXY)
     return true;
   if (!url_security_manager_)
     return false;
   return url_security_manager_->CanUseDefaultCredentials(origin_);
 }
 
 HttpAuthHandlerNTLM::Factory::Factory()
     : max_token_length_(0),
-      first_creation_(true),
       is_unsupported_(false) {
 }
 
 HttpAuthHandlerNTLM::Factory::~Factory() {
 }
 
 int HttpAuthHandlerNTLM::Factory::CreateAuthHandler(
     HttpAuthChallengeTokenizer* challenge,
     HttpAuth::Target target,
     const GURL& origin,
@@ skipping 16 matching lines @@
   scoped_ptr<HttpAuthHandler> tmp_handler(
       new HttpAuthHandlerNTLM(sspi_library_.get(), max_token_length_,
                               url_security_manager()));
   if (!tmp_handler->InitFromChallenge(challenge, target, origin, net_log))
     return ERR_INVALID_RESPONSE;
   handler->swap(tmp_handler);
   return OK;
 }
 
 }  // namespace net