Convert ConnectToApplication to take a params class

components/html_viewer/layout_test_html_viewer.cc

Index: components/html_viewer/layout_test_html_viewer.cc
diff --git a/components/html_viewer/layout_test_html_viewer.cc b/components/html_viewer/layout_test_html_viewer.cc
index 3c0a72dd159a7d8a17b6fc9975080bc6a03891cd..459e301515d595468310b100c67dfeb63c9df596 100644
--- a/components/html_viewer/layout_test_html_viewer.cc
+++ b/components/html_viewer/layout_test_html_viewer.cc
@@ -37,9 +37,7 @@ void LayoutTestHTMLViewer::TestFinished() {
   test_interfaces_->ResetAll();
 
   web_view::LayoutTestRunnerPtr test_runner_ptr;
-  mojo::URLRequestPtr request(mojo::URLRequest::New());
-  request->url = mojo::String::From("mojo:web_view_test_runner");
-  app()->ConnectToService(request.Pass(), &test_runner_ptr);
+  app()->ConnectToService("mojo:web_view_test_runner", &test_runner_ptr);
   test_runner_ptr->TestFinished();
 }