Fix notifications tests' use of assert_object_equals

LayoutTests/http/tests/notifications/notification-data-property.html

Index: LayoutTests/http/tests/notifications/notification-data-property.html
diff --git a/LayoutTests/http/tests/notifications/notification-data-property.html b/LayoutTests/http/tests/notifications/notification-data-property.html
index d33d85ac14183bb5a9ae55eefb2aba9b0d58e45f..92a8d89491f877504df30ac3d1a0211ab25be8e2 100644
--- a/LayoutTests/http/tests/notifications/notification-data-property.html
+++ b/LayoutTests/http/tests/notifications/notification-data-property.html
@@ -14,10 +14,8 @@
     function assertNotificationDataReflects(value) {
         var notification = new Notification('Title', { data: value });
 
-        if (Array.isArray(value))
+        if (typeof value === 'object')
             assert_object_equals(notification.data, value);
-        else if (typeof value === 'object')
-            assert_array_equals(notification.data, value);
         else
             assert_equals(notification.data, value);
     }