Deliver action clicks to page notifications (blink)

Source/modules/notifications/Notification.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 67 matching lines @@
     void close();
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(click);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(show);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(close);
 
     // WebNotificationDelegate implementation.
     void dispatchShowEvent() override;
     void dispatchClickEvent() override;
+    void dispatchClickEvent(int actionIndex) override;
     void dispatchErrorEvent() override;
     void dispatchCloseEvent() override;
 
     String title() const { return m_title; }
     String dir() const { return m_dir; }
     String lang() const { return m_lang; }
     String body() const { return m_body; }
     String tag() const { return m_tag; }
     String icon() const { return m_iconUrl; }
     const NavigatorVibration::VibrationPattern& vibrate(bool& isNull) const;
@@ skipping 83 matching lines @@
     void setState(NotificationState state) { m_state = state; }
 
     NotificationState m_state;
 
     AsyncMethodRunner<Notification> m_asyncRunner;
 };
 
 } // namespace blink
 
 #endif // Notification_h