[WIP] Implement sound attr in notification

Source/modules/notifications/Notification.cpp

Index: Source/modules/notifications/Notification.cpp
diff --git a/Source/modules/notifications/Notification.cpp b/Source/modules/notifications/Notification.cpp
index 72638ba4ea829c4cdff4694510ce411116331894..345859154ad543319483f292ff7e54277418d6d8 100644
--- a/Source/modules/notifications/Notification.cpp
+++ b/Source/modules/notifications/Notification.cpp
@@ -107,6 +107,12 @@ Notification* Notification::create(ExecutionContext* context, const String& titl
             notification->setIconUrl(iconUrl);
     }
 
+    if (options.hasSound()) {
+        KURL soundUrl = options.sound().isEmpty() ? KURL() : context->completeURL(options.sound());
+        if (!soundUrl.isEmpty() && soundUrl.isValid())
+            notification->setSoundUrl(soundUrl);
+    }
+
     String insecureOriginMessage;
     UseCounter::Feature feature = context->isPrivilegedContext(insecureOriginMessage)
         ? UseCounter::NotificationSecureOrigin
@@ -132,6 +138,9 @@ Notification* Notification::create(ExecutionContext* context, int64_t persistent
     if (!data.icon.isEmpty())
         notification->setIconUrl(data.icon);
 
+    if (!data.sound.isEmpty())
+        notification->setSoundUrl(data.sound);
+
     if (!data.vibrate.isEmpty()) {
         NavigatorVibration::VibrationPattern pattern;
         pattern.appendRange(data.vibrate.begin(), data.vibrate.end());
@@ -191,7 +200,7 @@ void Notification::show()
     // they were created by, and thus the data doesn't have to be known to the embedder.
     Vector<char> emptyDataWireBytes;
 
-    WebNotificationData notificationData(m_title, dir, m_lang, m_body, m_tag, m_iconUrl, m_vibrate, m_silent, emptyDataWireBytes);
+    WebNotificationData notificationData(m_title, dir, m_lang, m_body, m_tag, m_iconUrl, m_soundUrl, m_vibrate, m_silent, emptyDataWireBytes);
     notificationManager()->show(WebSerializedOrigin(*origin), notificationData, this);
 
     m_state = NotificationStateShowing;