Implement the PageNotificationDelegate for the new Web Notification path.

content/browser/notifications/page_notification_delegate.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_BROWSER_NOTIFICATIONS_PAGE_NOTIFICATION_DELEGATE_H_
+#define CONTENT_BROWSER_NOTIFICATIONS_PAGE_NOTIFICATION_DELEGATE_H_
+
+#include "content/public/browser/desktop_notification_delegate.h"
+
+namespace content {
+
+// A delegate used by the notification service to report the results of platform
+// notification interactions to Web Notifications whose lifetime is tied to
+// that of the page displaying them.
+class PageNotificationDelegate : public DesktopNotificationDelegate {
+ public:
+  PageNotificationDelegate(int render_process_id, int notification_id);
+  ~PageNotificationDelegate() override;
+
+  // DesktopNotificationDelegate implementation.
+  void NotificationDisplayed() override;
+  void NotificationError() override;
+  void NotificationClosed(bool by_user) override;
+  void NotificationClick() override;
+
+ private:
+  int render_process_id_;
+  int notification_id_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_NOTIFICATIONS_PAGE_NOTIFICATION_DELEGATE_H_