net: plumb DnsRRResolver from IOThread to HttpNetworkSession.

net/url_request/url_request_unittest.h

 // 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.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_UNITTEST_H_
 #define NET_URL_REQUEST_URL_REQUEST_UNITTEST_H_
 #pragma once
 
 #include <stdlib.h>
 
@@ skipping 143 matching lines @@
   }
 
  private:
   void Init() {
     ftp_transaction_factory_ = new net::FtpNetworkLayer(host_resolver_);
     ssl_config_service_ = new net::SSLConfigServiceDefaults;
     http_auth_handler_factory_ = net::HttpAuthHandlerFactory::CreateDefault(
         host_resolver_);
     http_transaction_factory_ = new net::HttpCache(
         net::HttpNetworkLayer::CreateFactory(host_resolver_,
+                                             NULL,
                                              proxy_service_,
                                              ssl_config_service_,
                                              http_auth_handler_factory_,
                                              network_delegate_,
                                              NULL),
         net::HttpCache::DefaultBackend::InMemory(0));
     // In-memory cookie store.
     cookie_store_ = new net::CookieMonster(NULL, NULL);
     accept_language_ = "en-us,fr";
     accept_charset_ = "iso-8859-1,*,utf-8";
@@ skipping 212 matching lines @@
   bool received_data_before_response_;
   bool request_failed_;
   bool have_certificate_errors_;
   std::string data_received_;
 
   // our read buffer
   scoped_refptr<net::IOBuffer> buf_;
 };
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_UNITTEST_H_