diff -r 000000000000 -r 6474c204b198 layout/reftests/css-variables/reftest.list
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/reftests/css-variables/reftest.list	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,4 @@
+default-preferences pref(layout.css.variables.enabled,true)
+
+== variables-ruletree-cache-01.html variables-ruletree-cache-01-ref.html
+== variables-ruletree-cache-02.html variables-ruletree-cache-02-ref.html