Implementation of renotify flag for Notifications.

third_party/WebKit/Source/modules/notifications/NotificationData.cpp

Index: third_party/WebKit/Source/modules/notifications/NotificationData.cpp
diff --git a/third_party/WebKit/Source/modules/notifications/NotificationData.cpp b/third_party/WebKit/Source/modules/notifications/NotificationData.cpp
index d7bc93f1ab08eb2ee0ef0ba8502bfcd7c0355ad7..d551d413e35d65945d13cfc45636b5157fef1fe9 100644
--- a/third_party/WebKit/Source/modules/notifications/NotificationData.cpp
+++ b/third_party/WebKit/Source/modules/notifications/NotificationData.cpp
@@ -38,6 +38,12 @@ WebNotificationData createWebNotificationData(ExecutionContext* executionContext
         return WebNotificationData();
     }
 
+    // If renotify is true, the notification must have a tag.
+    if (options.renotify() && options.tag().isEmpty()) {
+        exceptionState.throwTypeError("Notifications which set the renotify flag must specify a non-empty tag.");
+        return WebNotificationData();
+    }
+
     WebNotificationData webData;
 
     webData.title = title;
@@ -58,6 +64,7 @@ WebNotificationData createWebNotificationData(ExecutionContext* executionContext
     webData.icon = iconUrl;
     webData.vibrate = NavigatorVibration::sanitizeVibrationPattern(options.vibrate());
     webData.timestamp = options.hasTimestamp() ? static_cast<double>(options.timestamp()) : WTF::currentTimeMS();
+    webData.renotify = options.renotify();
     webData.silent = options.silent();
     webData.requireInteraction = options.requireInteraction();