Missed a couple of s/m_parsedProperties->size()/m_parsedProperties.size()/ in CSSGrammar.y.in @supports code.
Created attachment 176834 [details] Patch
Sorry for breaking this!
Comment on attachment 176834 [details] Patch Clearing flags on attachment: 176834 Committed r136184: <http://trac.webkit.org/changeset/136184>
All reviewed patches have been landed. Closing bug.