[LayoutNG] Re-enable virtual/layout_ng/

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base_unittest.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base_unittest.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base_unittest.py b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base_unittest.py
index 353220038e699500cd925868a2babe81fb747857..dabb72b00fc9875aa67381c9589780c9a11ac916 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base_unittest.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/base_unittest.py
@@ -372,6 +372,10 @@ class PortTest(unittest.TestCase):
         self.assertEqual(port.reference_files('external/wpt/html/dom/elements/global-attributes/dir_auto-EN-L.html'),
                          [('==', port.layout_tests_dir() +
                            '/external/wpt/html/dom/elements/global-attributes/dir_auto-EN-L-ref.html')])
+        self.assertEqual(port.reference_files('virtual/layout_ng/' +
+                                              'external/wpt/html/dom/elements/global-attributes/dir_auto-EN-L.html'),
+                         [('==', port.layout_tests_dir() +
+                           '/external/wpt/html/dom/elements/global-attributes/dir_auto-EN-L-ref.html')])
 
     def test_operating_system(self):
         self.assertEqual('mac', self.make_port().operating_system())