net: remove DNS certificate checking code.

jingle/notifier/base/proxy_resolving_client_socket.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.
 
 #include "jingle/notifier/base/proxy_resolving_client_socket.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
@@ skipping 31 matching lines @@
       request_context_getter->GetURLRequestContext();
   DCHECK(request_context);
   net::HttpNetworkSession::Params session_params;
   session_params.client_socket_factory = socket_factory;
   session_params.host_resolver = request_context->host_resolver();
   session_params.cert_verifier = request_context->cert_verifier();
   // TODO(rkn): This is NULL because OriginBoundCertService is not thread safe.
   session_params.origin_bound_cert_service = NULL;
   // transport_security_state is NULL because it's not thread safe.
   session_params.transport_security_state = NULL;
-  session_params.dns_cert_checker = request_context->dns_cert_checker();
   session_params.proxy_service = request_context->proxy_service();
   session_params.ssl_host_info_factory = NULL;
   session_params.ssl_config_service = request_context->ssl_config_service();
   session_params.http_auth_handler_factory =
       request_context->http_auth_handler_factory();
   session_params.network_delegate = request_context->network_delegate();
   session_params.http_server_properties =
       request_context->http_server_properties();
   session_params.net_log = request_context->net_log();
   network_session_ = new net::HttpNetworkSession(session_params);
@@ skipping 307 matching lines @@
   return base::TimeDelta::FromMicroseconds(-1);
 }
 
 void ProxyResolvingClientSocket::CloseTransportSocket() {
   if (transport_.get() && transport_->socket())
     transport_->socket()->Disconnect();
   transport_.reset();
 }
 
 }  // namespace notifier