Introduce SystemNetworkContextManager.

content/utility/utility_service_factory.cc

 // Copyright 2015 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 "content/utility/utility_service_factory.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "content/child/child_process.h"
-#include "content/network/network_service.h"
+#include "content/network/network_service_impl.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_features.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/service_names.mojom.h"
 #include "content/public/utility/content_utility_client.h"
 #include "content/public/utility/utility_thread.h"
 #include "content/utility/utility_thread_impl.h"
 #include "ppapi/features/features.h"
 #include "services/data_decoder/data_decoder_service.h"
 #include "services/data_decoder/public/interfaces/constants.mojom.h"
@@ skipping 105 matching lines @@
 
 void UtilityServiceFactory::OnLoadFailed() {
   UtilityThreadImpl* utility_thread =
       static_cast<UtilityThreadImpl*>(UtilityThread::Get());
   utility_thread->Shutdown();
   utility_thread->ReleaseProcessIfNeeded();
 }
 
 std::unique_ptr<service_manager::Service>
 UtilityServiceFactory::CreateNetworkService() {
-  return base::MakeUnique<NetworkService>(std::move(network_registry_));
+  return base::MakeUnique<NetworkServiceImpl>(std::move(network_registry_));
 }
 
 }  // namespace content