Remove NetworkDelegate from HttpNetworkSession.

headless/lib/browser/headless_url_request_context_getter.cc

 // Copyright 2016 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 "headless/lib/browser/headless_url_request_context_getter.h"
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/worker_pool.h"
@@ skipping 137 matching lines @@
     network_session_params.transport_security_state =
         url_request_context_->transport_security_state();
     network_session_params.channel_id_service =
         url_request_context_->channel_id_service();
     network_session_params.proxy_service =
         url_request_context_->proxy_service();
     network_session_params.ssl_config_service =
         url_request_context_->ssl_config_service();
     network_session_params.http_auth_handler_factory =
         url_request_context_->http_auth_handler_factory();
-    network_session_params.network_delegate = network_delegate_.get();
     network_session_params.http_server_properties =
         url_request_context_->http_server_properties();
     network_session_params.net_log = url_request_context_->net_log();
     network_session_params.ignore_certificate_errors =
         ignore_certificate_errors_;
     if (command_line.HasSwitch(switches::kHostResolverRules)) {
       scoped_ptr<net::MappedHostResolver> mapped_host_resolver(
           new net::MappedHostResolver(std::move(host_resolver)));
       mapped_host_resolver->SetRulesFromString(
           command_line.GetSwitchValueASCII(switches::kHostResolverRules));
@@ skipping 47 matching lines @@
 HeadlessURLRequestContextGetter::GetNetworkTaskRunner() const {
   return content::BrowserThread::GetMessageLoopProxyForThread(
       content::BrowserThread::IO);
 }
 
 net::HostResolver* HeadlessURLRequestContextGetter::host_resolver() const {
   return url_request_context_->host_resolver();
 }
 
 }  // namespace headless