Remove content::NotificationPermissionDispatcher.

content/renderer/notification_permission_dispatcher.h

-// 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.
-
-#ifndef CONTENT_RENDERER_NOTIFICATION_PERMISSION_DISPATCHER_H_
-#define CONTENT_RENDERER_NOTIFICATION_PERMISSION_DISPATCHER_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "content/public/renderer/render_frame_observer.h"
-#include "third_party/WebKit/public/platform/modules/permissions/permission.mojom.h"
-
-namespace blink {
-class WebNotificationPermissionCallback;
-class WebSecurityOrigin;
-}
-
-namespace content {
-
-class RenderFrame;
-
-// Dispatcher for Web Notification permission requests.
-class NotificationPermissionDispatcher : public RenderFrameObserver {
- public:
-  explicit NotificationPermissionDispatcher(RenderFrame* render_frame);
-  ~NotificationPermissionDispatcher() override;
-
-  // Requests permission to display Web Notifications for |origin|. The callback
-  // will be invoked when the permission status is available. This class will
-  // take ownership of |callback|.
-  void RequestPermission(const blink::WebSecurityOrigin& origin,
-                         blink::WebNotificationPermissionCallback* callback);
-
- private:
-  // RenderFrameObserver implementation.
-  void OnDestruct() override;
-
-  void OnPermissionRequestComplete(
-      std::unique_ptr<blink::WebNotificationPermissionCallback> callback,
-      blink::mojom::PermissionStatus status);
-
-  blink::mojom::PermissionServicePtr permission_service_;
-
-  DISALLOW_COPY_AND_ASSIGN(NotificationPermissionDispatcher);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_NOTIFICATION_PERMISSION_DISPATCHER_H_