We are failing some WPT tests for this property in certain scenarios such as when we are not returning the shortest representation for the property value. We can reuse the logic that is in ShorthandSerializer instead of duplicating the logic
<rdar://problem/115521465>
Pull request: https://github.com/WebKit/WebKit/pull/17794
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/42038
Committed 268132@main (5780a097f692): <https://commits.webkit.org/268132@main> Reviewed commits have been landed. Closing PR #17794 and removing active labels.