The CSS WG just accepted the proposal in http://lists.w3.org/Archives/Public/www-style/2009Jan/0234.html per http://wiki.csswg.org/spec/css2.1#issue-105 . We should update our parsing code to match.
Created attachment 365843 [details] [diff] [review]
patch 1: rename ParsePositiveVariant, since that's not what it does
Created attachment 365844 [details] [diff] [review]
patch 2: fix
I have the new function a weird name since I didn't want to reuse ParsePositiveVariant with a different meaning from what it used to have.