Convert ConnectToApplication to take a params class

mojo/services/network/http_server_apptest.cc

Index: mojo/services/network/http_server_apptest.cc
diff --git a/mojo/services/network/http_server_apptest.cc b/mojo/services/network/http_server_apptest.cc
index ce93f047d1465daa9b4bf5ef66c744d47d5a864a..ae04031b920ca6a4ca4b633c22515621c56c6bcb 100644
--- a/mojo/services/network/http_server_apptest.cc
+++ b/mojo/services/network/http_server_apptest.cc
@@ -552,10 +552,8 @@ class HttpServerAppTest : public test::ApplicationTestBase {
   void SetUp() override {
     ApplicationTestBase::SetUp();
 
-    mojo::URLRequestPtr request(mojo::URLRequest::New());
-    request->url = mojo::String::From("mojo:network_service");
     scoped_ptr<ApplicationConnection> connection =
-        application_impl()->ConnectToApplication(request.Pass());
+        application_impl()->ConnectToApplication("mojo:network_service");
     connection->ConnectToService(&network_service_);
     connection->ConnectToService(&web_socket_factory_);
   }