Convert ConnectToApplication to take a params class

components/mus/ws/window_manager_client_apptest.cc

 // Copyright 2014 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.
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/run_loop.h"
 #include "components/mus/common/util.h"
 #include "components/mus/public/cpp/tests/window_server_test_base.h"
 #include "components/mus/public/cpp/window_observer.h"
@@ skipping 210 matching lines @@
     const EmbedResult result(embed_details_->connection,
                              embed_details_->connection_id);
     embed_details_.reset();
     return result;
   }
 
   // Establishes a connection to this application and asks for a
   // WindowTreeClient.
   mus::mojom::WindowTreeClientPtr
   ConnectToApplicationAndGetWindowServerClient() {
-    mojo::URLRequestPtr request(mojo::URLRequest::New());
-    request->url = mojo::String::From(application_impl()->url());
-    scoped_ptr<mojo::ApplicationConnection> connection =
-        application_impl()->ConnectToApplication(request.Pass());
     mus::mojom::WindowTreeClientPtr client;
-    connection->ConnectToService(&client);
+    application_impl()->ConnectToService(application_impl()->url(), &client);
     return client.Pass();
   }
 
   // WindowServerTestBase:
   void OnEmbed(Window* root) override {
     if (!embed_details_) {
       WindowServerTestBase::OnEmbed(root);
       return;
     }
 
@@ skipping 642 matching lines @@
   WaitForBoundsToChange(embedded_connection->GetRoot());
   EXPECT_TRUE(gfx::Rect(21, 22, 23, 24) ==
               embedded_connection->GetRoot()->bounds());
   EXPECT_TRUE(gfx::Insets(1, 2, 3, 4) ==
               embedded_connection->GetRoot()->client_area());
 }
 
 }  // namespace ws
 
 }  // namespace mus