Implement a MusBrowserFrame.

chrome/browser/mojo_runner_state.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 "chrome/browser/mojo_runner_state.h"
 
+#include "components/mus/public/interfaces/window_manager.mojom.h"
 #include "mojo/application/public/cpp/application_delegate.h"
 #include "mojo/application/public/cpp/application_impl.h"
+#include "mojo/converters/network/network_type_converters.h"
 #include "mojo/runner/child/runner_connection.h"
+#include "ui/views/mus/window_manager_connection.h"
 
 class ChromeApplicationDelegate : public mojo::ApplicationDelegate {
  public:
   ChromeApplicationDelegate() {}
   ~ChromeApplicationDelegate() override {}
 
  private:
   void Initialize(mojo::ApplicationImpl* application) override {
-    // TODO(beng): Connect to the window manager.
+    mus::mojom::WindowManagerPtr window_manager;
+    application->ConnectToService(
+        mojo::URLRequest::From(std::string("mojo:example_wm")),
+        &window_manager);
+    views::WindowManagerConnection::Create(window_manager.Pass(), application);
   }
   bool ConfigureIncomingConnection(
       mojo::ApplicationConnection* connection) override {
     return false;
   }
 
   DISALLOW_COPY_AND_ASSIGN(ChromeApplicationDelegate);
 };
 
 MojoRunnerState::MojoRunnerState() {}
 MojoRunnerState::~MojoRunnerState() {}
 
 void MojoRunnerState::WaitForConnection() {
   mojo::InterfaceRequest<mojo::Application> application_request;
   runner_connection_.reset(
       mojo::runner::RunnerConnection::ConnectToRunner(&application_request));
   application_delegate_.reset(new ChromeApplicationDelegate);
   application_impl_.reset(new mojo::ApplicationImpl(
       application_delegate_.get(), application_request.Pass()));
   application_impl_->WaitForInitialize();
 }