tree 29f9329f35ac6dd49e944914e0b8840347fe66e0
parent 02f0c04d78f0a636b99a433113488614cb6a09e5
author Rune Lillesveen <futhark@chromium.org> 1692177640 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1692179840 -0700

::backdrop is tree-abiding and should be allowed after ::slotted()

When ::backdrop was moved into css-position, it was made tree-abiding:

https://drafts.csswg.org/css-position-4/#backdrop

That means ::slotted()::backdrop should be allowed.

Bug: 1473233
Change-Id: I4079c38c2efa53f411b157ad6e8956e271fdd6d7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4778566
Reviewed-by: Steinar H Gunderson <sesse@chromium.org>
Commit-Queue: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1184038}