This should have been added in
https://hg.mozilla.org/mozilla-central/rev/745c0c2aa1fe (bug 464339).
Furthermore, the image being missing was the result of using
checkin-needed on a non-GIT-style diff "containing" an image.
--HG--
rename : layout/reftests/view-source/reftests.list => layout/reftests/view-source/reftest.list