mojo: first take on removing mojo_main_{chromium,standalone}.

mojo/services/window_manager/main.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 "mojo/public/cpp/application/application_delegate.h"
+#include "mojo/public/cpp/application/application_export.h"
+#include "mojo/public/cpp/application/application_runner_chromium.h"
 #include "mojo/services/window_manager/window_manager_app.h"
 
 // ApplicationDelegate implementation file for WindowManager users (e.g.
 // core window manager tests) that do not want to provide their own
 // ApplicationDelegate::Create().
 
-namespace mojo {
-
-// static
-ApplicationDelegate* ApplicationDelegate::Create() {
-  return new WindowManagerApp(NULL);
+extern "C" APPLICATION_EXPORT MojoResult CDECL MojoMain(
+    MojoHandle shell_handle) {
+  return mojo::ApplicationRunnerChromium(make_scoped_delegate(
+      new mojo::WindowManagerApp(NULL))).Run(shell_handle);
 }
-
-}  // namespace mojo