As discussed on bug 21868, layerX and layerY can be safely removed from Chromium as no one depends on them.
Created attachment 110901 [details] Simple removal for darinf.
Please wait for approval from fishd@chromium.org before submitting because this patch contains changes to the Chromium public API.
Comment on attachment 110901 [details] Simple removal for darinf. Clearing flags on attachment: 110901 Committed r97425: <http://trac.webkit.org/changeset/97425>
All reviewed patches have been landed. Closing bug.