Masonry defines an algorithm for placing items when masonry is specified for either grid-template-rows or grid-templatae-columns https://drafts.csswg.org/css-grid-3/#masonry-layout
<rdar://problem/101303069>
Pull request: https://github.com/WebKit/WebKit/pull/5949
Committed 257124@main (321eeed11b55): <https://commits.webkit.org/257124@main> Reviewed commits have been landed. Closing PR #5949 and removing active labels.
Reverted by https://github.com/WebKit/WebKit/pull/6920
Re-opening for pull request https://github.com/WebKit/WebKit/pull/6920
Committed 257133@main (7e26ee98dc89): <https://commits.webkit.org/257133@main> Reviewed commits have been landed. Closing PR #6920 and removing active labels.