Mojo: Use InterfaceFactory<Interface> for service registration

mojo/services/network/network_service_impl.cc

 // Copyright 2014 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 "mojo/services/network/network_service_impl.h"
 
 #include "mojo/services/network/url_loader_impl.h"
 
 namespace mojo {
 
-NetworkServiceImpl::NetworkServiceImpl(ApplicationConnection* connection,
-                                       NetworkContext* context)
+NetworkServiceImpl::NetworkServiceImpl(NetworkContext* context)
     : context_(context) {
 }
 
 NetworkServiceImpl::~NetworkServiceImpl() {
 }
 
 void NetworkServiceImpl::CreateURLLoader(InterfaceRequest<URLLoader> loader) {
   BindToRequest(new URLLoaderImpl(context_), &loader);
 }
 
 }  // namespace mojo