They are currently type int. However, they were always stored and actually ever populated with positive integer values (i.e. unsigned). We should make it clear that they are meant to contain unsigned values.
<rdar://problem/117427783>
Pull request: https://github.com/WebKit/WebKit/pull/19503
Committed 269738@main (dd31388a0aef): <https://commits.webkit.org/269738@main> Reviewed commits have been landed. Closing PR #19503 and removing active labels.