Get rid of {Run,Terminate}MainApplication(), and more ApplicationDelegate conversion.

services/native_viewport/ozone/app_delegate_ozone.h

-// 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.
-
-#ifndef SERVICES_NATIVE_VIEWPORT_APP_DELEGATE_OZONE_H_
-#define SERVICES_NATIVE_VIEWPORT_APP_DELEGATE_OZONE_H_
-
-#include "services/native_viewport/app_delegate.h"
-#include "services/native_viewport/ozone/display_manager.h"
-
-namespace native_viewport {
-
-class NativeViewportOzoneAppDelegate : public NativeViewportAppDelegate {
- public:
-  using NativeViewportAppDelegate::Create;
-
-  void Initialize(mojo::ApplicationImpl* application) override;
-  bool ConfigureIncomingConnection(
-      mojo::ServiceProviderImpl* service_provider_impl) override;
-
- private:
-  std::unique_ptr<DisplayManager> display_manager_;
-};
-
-}  // namespace native_viewport
-
-#endif