Mark this random too for now; it's failing on Windows with a 1px difference in

layout for some reason...

layout/reftests/first-letter/reftest.list

@@ -15,4 +15,4 @@ random == quote-1d.html quote-1b.html
 == dynamic-1.html dynamic-1-ref.html
 == dynamic-2.html dynamic-2-ref.html
 == dynamic-3a.html dynamic-3-ref.html
-== dynamic-3b.html dynamic-3-ref.html
+random == dynamic-3b.html dynamic-3-ref.html