Supports the sound attribute to the Notification object

Source/modules/notifications/ServiceWorkerRegistrationNotifications.cpp

Index: Source/modules/notifications/ServiceWorkerRegistrationNotifications.cpp
diff --git a/Source/modules/notifications/ServiceWorkerRegistrationNotifications.cpp b/Source/modules/notifications/ServiceWorkerRegistrationNotifications.cpp
index f902a7aa3534d3a84e8774574f02148d590bd773..c2d2301fce6ec0d3632bac1d7d2502eb2aed80b7 100644
--- a/Source/modules/notifications/ServiceWorkerRegistrationNotifications.cpp
+++ b/Source/modules/notifications/ServiceWorkerRegistrationNotifications.cpp
@@ -60,8 +60,8 @@ ScriptPromise ServiceWorkerRegistrationNotifications::showNotification(ScriptSta
     if (Notification::checkPermission(executionContext) != WebNotificationPermissionAllowed)
         return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "No notification permission has been granted for this origin."));
 
-    if (options.hasVibrate() && options.silent())
-        return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "Silent notifications must not specify vibration patterns."));
+    if ((options.hasSound() || options.hasVibrate()) && options.silent())
+        return ScriptPromise::reject(scriptState, V8ThrowException::createTypeError(scriptState->isolate(), "Silent notifications must not specify sound or vibration patterns."));
 
     // FIXME: Unify the code path here with the Notification.create() function.
     Vector<char> dataAsWireBytes;
@@ -85,9 +85,16 @@ ScriptPromise ServiceWorkerRegistrationNotifications::showNotification(ScriptSta
             iconUrl = KURL();
     }
 
+    KURL soundUrl;
+    if (options.hasSound() && !options.sound().isEmpty()) {
+        soundUrl = executionContext->completeURL(options.sound());
+        if (!soundUrl.isValid())
+            soundUrl = KURL();
+    }
+
     WebNotificationData::Direction dir = options.dir() == "rtl" ? WebNotificationData::DirectionRightToLeft : WebNotificationData::DirectionLeftToRight;
     NavigatorVibration::VibrationPattern vibrate = NavigatorVibration::sanitizeVibrationPattern(options.vibrate());
-    WebNotificationData notification(title, dir, options.lang(), options.body(), options.tag(), iconUrl, vibrate, options.silent(), dataAsWireBytes);
+    WebNotificationData notification(title, dir, options.lang(), options.body(), options.tag(), iconUrl, soundUrl, vibrate, options.silent(), dataAsWireBytes);
     WebNotificationShowCallbacks* callbacks = new CallbackPromiseAdapter<void, void>(resolver);
 
     SecurityOrigin* origin = executionContext->securityOrigin();