The WOFF MIME Type was formally registered as application/font-woff (FINALLY):
http://www.iana.org/assignments/media-types/application/font-woff, so the warning is obsolete now.
Chromium bug #178823
Created attachment 191457 [details]
Comment on attachment 191457 [details]
Clearing flags on attachment: 191457
Committed r144763: <http://trac.webkit.org/changeset/144763>
All reviewed patches have been landed. Closing bug.