As part of the work on bug 267762 we need to make the `display` property animatable.
Pull request: https://github.com/WebKit/WebKit/pull/26238
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/45246
The change in behavior for the test imported/blink/fast/css-generated-content/pseudo-animation-display.html is tracked in https://bugs.webkit.org/show_bug.cgi?id=271375.
Committed 276464@main (531dc1cbbb66): <https://commits.webkit.org/276464@main> Reviewed commits have been landed. Closing PR #26238 and removing active labels.
<rdar://problem/125169737>