Supports the sound attribute to the Notification object

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 72 matching lines @@
     void dispatchClickEvent() 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; }
+    String sound() const { return m_soundUrl; }
     NavigatorVibration::VibrationPattern vibrate(bool& isNull) const;
     bool silent() const { return m_silent; }
     ScriptValue data(ScriptState*) const;
 
     TextDirection direction() const;
     KURL iconURL() const { return m_iconUrl; }
+    KURL soundURL() const { return m_soundUrl; }
     SerializedScriptValue* serializedData() const { return m_serializedData.get(); }
 
     static String permissionString(WebNotificationPermission);
     static String permission(ExecutionContext*);
     static WebNotificationPermission checkPermission(ExecutionContext*);
     static void requestPermission(ExecutionContext*, NotificationPermissionCallback* = nullptr);
 
     // EventTarget interface.
     virtual ExecutionContext* executionContext() const override final { return ActiveDOMObject::executionContext(); }
     virtual bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) override final;
@@ skipping 14 matching lines @@
     // a V8 wrapper, hasPendingActivity() prevents the wrapper from being
     // collected while m_state is Showing, and so this instance stays alive
     // until the operation completes. Otherwise, you need to hold a ref on this
     // instance until the operation completes.
     void show();
 
     void setDir(const String& dir) { m_dir = dir; }
     void setLang(const String& lang) { m_lang = lang; }
     void setBody(const String& body) { m_body = body; }
     void setIconUrl(KURL iconUrl) { m_iconUrl = iconUrl; }
+    void setSoundUrl(KURL soundUrl) { m_soundUrl = soundUrl; }
     void setTag(const String& tag) { m_tag = tag; }
     void setVibrate(const NavigatorVibration::VibrationPattern& vibrate) { m_vibrate = vibrate; }
     void setSilent(bool silent) { m_silent = silent; }
     void setSerializedData(PassRefPtr<SerializedScriptValue> data) { m_serializedData = data; }
 
     void setPersistentId(int64_t persistentId) { m_persistentId = persistentId; }
 
 private:
     String m_title;
     String m_dir;
     String m_lang;
     String m_body;
     String m_tag;
     NavigatorVibration::VibrationPattern m_vibrate;
     bool m_silent;
     RefPtr<SerializedScriptValue> m_serializedData;
 
     KURL m_iconUrl;
+    KURL m_soundUrl;
 
     // Notifications can either be bound to the page, which means they're identified by
     // their delegate, or persistent, which means they're identified by a persistent Id
     // given to us by the embedder. This influences how we close the notification.
     int64_t m_persistentId;
 
     enum NotificationState {
         NotificationStateIdle,
         NotificationStateShowing,
         NotificationStateClosing,
         NotificationStateClosed
     };
 
     // Only to be used by the Notification::create() method when notifications were created
     // by the embedder rather than by Blink.
     void setState(NotificationState state) { m_state = state; }
 
     NotificationState m_state;
 
     AsyncMethodRunner<Notification> m_asyncRunner;
 };
 
 } // namespace blink
 
 #endif // Notification_h