This will allow us to set their values as well as reading them.
Created attachment 265318 [details] the patch.
Comment on attachment 265318 [details] the patch. r=me
Comment on attachment 265318 [details] the patch. Clearing flags on attachment: 265318 Committed r192329: <http://trac.webkit.org/changeset/192329>
All reviewed patches have been landed. Closing bug.