Bug 1674319 [wpt PR 26343] - css-pseudo: ::placeholder should not support 'writing...

Bug 1674319 [wpt PR 26343] - css-pseudo: ::placeholder should not support 'writing-mode', 'direction', and 'text-orientation', a=testonly

Automatic update from web-platform-tests
css-pseudo: ::placeholder should not support 'writing-mode', 'direction', and 'text-orientation'

https://drafts.csswg.org/css-pseudo-4/#placeholder-pseudo
> All properties that apply to the ::first-line pseudo-element also
> apply to the ::placeholder pseudo-element.

https://drafts.csswg.org/css-pseudo-4/#first-line-styling
> User agents may apply other properties as well except for the
> following excluded properties:
> * writing-mode
> * direction
> * text-orientation

Bug: 1144040
Change-Id: Ia8c74ec80a7d94dc11053e4d95e3facae148f094
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2509073
Reviewed-by: Koji Ishii <kojii@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#822556}

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wpt-commits: a24d40776a2fea52f1a698e10d5bd98f3f46dee5
wpt-pr: 26343