Add RegisterService, split out of Connect().

third_party/WebKit/Source/platform/ServiceConnector.h

 // 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.
 
 #ifndef ServiceConnector_h
 #define ServiceConnector_h
 
 #include "mojo/public/cpp/bindings/binding.h"
 #include "public/platform/Platform.h"
 #include "services/service_manager/public/interfaces/connector.mojom-blink.h"
@@ skipping 21 matching lines @@
       return;
 
     service_manager::mojom::blink::IdentityPtr remoteIdentity(
         service_manager::mojom::blink::Identity::New());
     remoteIdentity->name = serviceName;
     remoteIdentity->user_id = service_manager::mojom::blink::kInheritUserID;
     remoteIdentity->instance = "";
 
     service_manager::mojom::blink::InterfaceProviderPtr remoteInterfaces;
     m_connector->Connect(std::move(remoteIdentity),
-                         MakeRequest(&remoteInterfaces), nullptr,
+                         MakeRequest(&remoteInterfaces),
                          base::Bind(&ServiceConnector::onConnectionCompleted));
 
     remoteInterfaces->GetInterface(Interface::Name_, request.PassMessagePipe());
   }
 
  private:
   ServiceConnector() {}
 
   static void onConnectionCompleted(
       service_manager::mojom::ConnectResult result,
       const WTF::String& targetUserID) {}
 
   service_manager::mojom::blink::ConnectorPtr m_connector;
 };
 
 }  // namespace blink
 
 #endif  // ServiceConnector_h