Routes calls to WM through WS

components/web_view/test_runner/test_runner_application_delegate.cc

 // Copyright 2015 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 "components/web_view/test_runner/test_runner_application_delegate.h"
 
 #include <iostream>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 48 matching lines @@
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // mojo::ApplicationDelegate implementation:
 
 void TestRunnerApplicationDelegate::Initialize(mojo::ApplicationImpl* app) {
   if (!test_runner::BlinkTestPlatformInitialize()) {
     NOTREACHED() << "Test environment could not be properly set up for blink.";
   }
   app_ = app;
-  mus::CreateSingleWindowTreeHost(app_, this, &host_);
+  mus::CreateSingleWindowTreeHost(app_, this, &host_, nullptr);
 }
 
 bool TestRunnerApplicationDelegate::ConfigureIncomingConnection(
     mojo::ApplicationConnection* connection) {
   connection->AddService<web_view::LayoutTestRunner>(this);
   return true;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // mus::WindowTreeDelegate implementation:
@@ skipping 73 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // mojo::InterfaceFactory<LayoutTestRunner> implementation:
 
 void TestRunnerApplicationDelegate::Create(
     mojo::ApplicationConnection* connection,
     mojo::InterfaceRequest<web_view::LayoutTestRunner> request) {
   layout_test_runner_.AddBinding(this, request.Pass());
 }
 
 }  // namespace web_view