Add RegisterService, split out of Connect().

services/service_manager/tests/connect/connect_test_package.cc

Index: services/service_manager/tests/connect/connect_test_package.cc
diff --git a/services/service_manager/tests/connect/connect_test_package.cc b/services/service_manager/tests/connect/connect_test_package.cc
index cef83518cafaaad31e9980a9736ec8d19acef913..6c142da8768ada1e37048598ce51f85ad26bec1a 100644
--- a/services/service_manager/tests/connect/connect_test_package.cc
+++ b/services/service_manager/tests/connect/connect_test_package.cc
@@ -116,9 +116,8 @@ class ProvidedService
   void ConnectToClassAppAsDifferentUser(
       const service_manager::Identity& target,
       const ConnectToClassAppAsDifferentUserCallback& callback) override {
-    Connector::ConnectParams params(target);
     std::unique_ptr<Connection> connection =
-        context()->connector()->Connect(&params);
+        context()->connector()->Connect(target);
     {
       base::RunLoop loop;
       connection->AddConnectionCompletedClosure(loop.QuitClosure());