Currently -webkit-text-emphasis only produces -webkit-text-emphasis-style and -webkit-text-emphasis-color not associated with a shorthand. Consequently, the queried -webkit-text-emphasis value is always empty.
Correction: the shorthand value is not reconstructed at the property value retrieval phase; its longhands have an association with the shorthand.
Created attachment 175344 [details] Patch
Comment on attachment 175344 [details] Patch Clearing flags on attachment: 175344 Committed r135374: <http://trac.webkit.org/changeset/135374>
All reviewed patches have been landed. Closing bug.