Ellipse positions should serialize the same way as they do for circles. See bug 129404.
Created attachment 225815 [details] Initial Patch
Comment on attachment 225815 [details] Initial Patch r=me
Comment on attachment 225815 [details] Initial Patch Clearing flags on attachment: 225815 Committed r165277: <http://trac.webkit.org/changeset/165277>
All reviewed patches have been landed. Closing bug.