The LayoutBox has been moved up to ShapeValue and is no longer needed in the BasicShape classes.
Created attachment 228640 [details] Patch
Comment on attachment 228640 [details] Patch r=me
Comment on attachment 228640 [details] Patch Clearing flags on attachment: 228640 Committed r166830: <http://trac.webkit.org/changeset/166830>
All reviewed patches have been landed. Closing bug.