Sync web-platform-tests PR 20667 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/20667
Details from upstream follow.

Ian Kilpatrick <ikilpatrick@chromium.org> wrote:

Fix invalidation for OOF-positioned objects with a display change.

Previously this branch was too limiting. It was possible for both:

• Parent() == ContainingBlock() and,
• OriginalDisplay() == EDisplay::kInline or something else.

This means that we invalidate, and correctly re-calculate the new
static-position.

Change-Id: I045d7cc27c951b3ae0faa5dd14887852b38bc828
Reviewed-on: https://chromium-review.googlesource.com/1956373
WPT-Export-Revision: b4ae2bfd9bf5385ec15ebc39ed6bedc064291ce0

CI Results

Ran 13 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 1 tests

Status Summary

Firefox

PASS: 1

Chrome

FAIL: 1

Safari

FAIL: 1

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

https://hg.mozilla.org/mozilla-central/rev/17081da83eaf