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

mojo/examples/dbus_echo/dbus_echo_app.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 <stdio.h>
 #include <string>
 
 #include "base/bind.h"
 #include "base/logging.h"
+#include "mojo/public/c/system/main.h"
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/application_impl.h"
+#include "mojo/public/cpp/application/application_runner.h"
 #include "mojo/public/cpp/environment/environment.h"
 #include "mojo/public/cpp/system/core.h"
 #include "mojo/public/cpp/system/macros.h"
 #include "mojo/services/dbus_echo/echo.mojom.h"
 
 namespace mojo {
 namespace examples {
 
 class DBusEchoApp : public ApplicationDelegate {
  public:
@@ skipping 13 matching lines @@
   void OnEcho(String echoed) {
     LOG(INFO) << "echo'd " << echoed;
   }
 
   EchoServicePtr echo_service_;
 
   DISALLOW_COPY_AND_ASSIGN(DBusEchoApp);
 };
 
 }  // namespace examples
+}  // namespace mojo
 
-// static
-ApplicationDelegate* ApplicationDelegate::Create() {
-  return new examples::DBusEchoApp();
+MojoResult MojoMain(MojoHandle shell_handle) {
+  mojo::ApplicationRunner runner(new mojo::examples::DBusEchoApp);
+  return runner.Run(shell_handle);
 }
-
-}  // namespace mojo