Mojo: Use InterfaceFactory<Interface> for service registration

mojo/services/network/network_service_impl.h

 // 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.
 
 #ifndef MOJO_SERVICES_NETWORK_NETWORK_SERVICE_IMPL_H_
 #define MOJO_SERVICES_NETWORK_NETWORK_SERVICE_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "mojo/public/cpp/bindings/interface_impl.h"
 #include "mojo/services/public/interfaces/network/network_service.mojom.h"
 
 namespace mojo {
-class ApplicationConnection;
 class NetworkContext;
 
 class NetworkServiceImpl : public InterfaceImpl<NetworkService> {
  public:
-  NetworkServiceImpl(ApplicationConnection* connection,
-                     NetworkContext* context);
+  explicit NetworkServiceImpl(NetworkContext* context);
   virtual ~NetworkServiceImpl();
 
   // NetworkService methods:
   virtual void CreateURLLoader(InterfaceRequest<URLLoader> loader) OVERRIDE;
 
  private:
   NetworkContext* context_;
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_NETWORK_NETWORK_SERVICE_IMPL_H_