Add RegisterService, split out of Connect().

services/service_manager/public/cpp/lib/connector_impl.h

Index: services/service_manager/public/cpp/lib/connector_impl.h
diff --git a/services/service_manager/public/cpp/lib/connector_impl.h b/services/service_manager/public/cpp/lib/connector_impl.h
index a07858c16de417b6eaf9ef72f05fe0f8cd55c14b..14a1d77ee4b3c2911dc7b6f43531d7568a8a3799 100644
--- a/services/service_manager/public/cpp/lib/connector_impl.h
+++ b/services/service_manager/public/cpp/lib/connector_impl.h
@@ -24,8 +24,11 @@ class ConnectorImpl : public Connector {
   void OnConnectionError();
 
   // Connector:
+  void Start(const Identity& identity,
+             mojom::ServicePtr service,
+             mojom::PIDReceiverRequest pid_receiver_request) override;
   std::unique_ptr<Connection> Connect(const std::string& name) override;
-  std::unique_ptr<Connection> Connect(ConnectParams* params) override;
+  std::unique_ptr<Connection> Connect(const Identity& target) override;
   std::unique_ptr<Connector> Clone() override;
   void BindRequest(mojom::ConnectorRequest request) override;