merge_pr_50776

[functions] Validate dashed-functions parse-time

We currently accept any token sequence in the argument list
of a dashed function, but really it should be #.
The production does impose a few restrictions
on what is allowed, e.g. top-level semicolon tokens.

Bug: 325504770, 390205875
Change-Id: I5766a4edc58c1caf448097c4270bcfa2f210b4f0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6275933
Commit-Queue: Anders Hartvoll Ruud andruud@chromium.org
Reviewed-by: Steinar H Gunderson sesse@chromium.org
Cr-Commit-Position: refs/heads/main@{#1421440}

merge_pr_50771

[SAA] Fix beyond-cookies test

There seems to be an issue where SameSite=None cookies aren't included
on fetches in the shared workers, but this is inconsistent depending
on which shell is used. For now, let's just clean up the expectation so
we test the core elements of the API at least.

Change-Id: I856a1dc142f3ba23f305f1866eee787f98a42d23
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6270140
Reviewed-by: Chris Fredrickson cfredric@chromium.org
Auto-Submit: Ari Chivukula arichiv@chromium.org
Commit-Queue: Ari Chivukula arichiv@chromium.org
Cr-Commit-Position: refs/heads/main@{#1421419}

merge_pr_50770

Disallow prefixed properties in highlight pseudos

The spec was updated to disallow prefixed properties in CSS Highlight
Pseudo element. Specifically:

"Vendor-prefixed properties such as -webkit-text-fill-color are not
applicable to the highlight pseudo-elements."

Fix this and update the tests that were testing for support to test for
non-support.

https://drafts.csswg.org/css-pseudo-4/#highlight-styling

Fixed: 390229581
Change-Id: Ieeb51411987ba592ea62a3972cff02b3ca8f2e43
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6277924
Commit-Queue: Stephen Chenney schenney@chromium.org
Reviewed-by: Anders Hartvoll Ruud andruud@chromium.org
Cr-Commit-Position: refs/heads/main@{#1421370}

merge_pr_50768

Don't invalidate for nth-of without style data.

We don't need to, and it trips assertions down the line when we try to
mark stuff as dirty.

Differential Revision: https://phabricator.services.mozilla.com/D238482

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1935785
gecko-commit: f9f51d3d7f2a3853eac05e7c05d16b8820eaca63
gecko-reviewers: jwatt

merge_pr_50767

Create META.yml for css-view-transitions (#50767)

merge_pr_50765

Fix ContainStyleScope::GetPrecedingElementInGenConList.

The binary search gives us the first node after the insertion point. We
want the preceding one, unless we're actually appending.

Deal with append explicitly like the other callers of BinarySearch.

Differential Revision: https://phabricator.services.mozilla.com/D238500

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1809505
gecko-commit: 8bca57a930ccf2f137140dc303ed3e5434ceb133
gecko-reviewers: jwatt

merge_pr_50761

Call UnregisterHandler earlier for the old handler

This makes sure we get the consistent behavior for every platform (except Android for now).

Differential Revision: https://phabricator.services.mozilla.com/D237022

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1890560
gecko-commit: a0dbaa387380b0ef3620f706bd741ad2b376734a
gecko-reviewers: asuth, nalexander, win-reviewers, gstoll

merge_pr_50760

[css-ui] Fix help links in generated appearance tests

merge_pr_50757

[wdspec] Add tests for fractional x and y values for pointer move action (mouse, touch).

Differential Revision: https://phabricator.services.mozilla.com/D237688

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1946774
gecko-commit: b95eb9227b1a7dbf6d777404300daf664ff7c030
gecko-reviewers: webdriver-reviewers, jgraham, masayuki

merge_pr_50756

WebKit export of https://bugs.webkit.org/show_bug.cgi?id=287806 (#50756)