Namely 'grid-row', 'grid-column', 'grid-position', 'grid-position', 'grid-span' and 'grid-area'.
This should be easy once we have support for the longhands.
'grid-row' and 'grid-column' were implemented in bug 110777.
'grid-position' and 'grid-span' were removed.
This means that 'grid-area' is the only shorthand we currently don't support.
Created attachment 211984 [details]
Committed r156638: <http://trac.webkit.org/changeset/156638>
*** Bug 117463 has been marked as a duplicate of this bug. ***