merge_pr_59661

WebKit export of https://bugs.webkit.org/show_bug.cgi?id=313148 (#59661)

merge_pr_59893

WebKit export of https://bugs.webkit.org/show_bug.cgi?id=313243 (#59893)

merge_pr_59886

Don't allow / <textarea> to have a first-line/letter.

This matches WebKit and our previous behavior.

These are replaced elements and those generally don't support them. It's
not defined that these elements are block containers, we just switched
to implement them as such.

Differential Revision: https://phabricator.services.mozilla.com/D300559

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=2039504
gecko-commit: 4c8e3c6bb9ab7e5bc559b4d12dbb174d3cc2e160
gecko-commit-git: 64f8770e451bd62dd35cfe153684bf6c06c2ce10
gecko-reviewers: layout-reviewers, jfkthame

merge_pr_59883

Relax test numeric comparison tolerance

Relax the numberic comparison tolerance for an example test.

Different style engines retain different floating-point precision. A tolerance
of 1e-5 is too strict for some engines that use float-based CSS numeric
representations.

With the existing tolerance, a test comparing the expected value 179.908752
against results such as 179.9087371826172 can fail despite values being valid.

Increase the tolerance to 1e-4 to avoid spurious test failures.

Differential Revision: https://phabricator.services.mozilla.com/D298905

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=2037446
gecko-commit: c43d099c48fa11100881073a2202e14f785adb85
gecko-commit-git: c8c57f4d23ca8552af7fc87434875a433eb6a9a8
gecko-reviewers: emilio, firefox-style-system-reviewers

merge_pr_59881

Prefer snap target that contains the focused element when multiple targets are aligned.

Add a new WPT (prefer-element-having-focused-element.html) since no
existing test covered this case. It verifies that a snap target
containing a focused non-snap element takes priority over other
aligned snap targets.

Differential Revision: https://phabricator.services.mozilla.com/D296591

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=2019482
gecko-commit: 148a8757aad11a408b35fe0fb9455d11815cc9ea
gecko-commit-git: 378d410be40f6e4a241704efaacd8eceb769bb3c
gecko-reviewers: botond

merge_pr_59880

FileReaderSync.readAsDataURL: check whole result

Signed-off-by: Euclid Ye [email protected]

merge_pr_59877

WebKit export of https://bugs.webkit.org/show_bug.cgi?id=311746 (#59877)

merge_pr_59876

FileReaderSync.readAsBinaryString new test: multi-byte UTF-8 char

Signed-off-by: Euclid Ye [email protected]

merge_pr_59870

Tweak the assertion for KeyframePercentage.

The percentage component could be outside [0%, 100%] if it is used
together with <timeline-range-name>. We should tweak the assertion.

Differential Revision: https://phabricator.services.mozilla.com/D300154

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=2036258
gecko-commit: 1fe47f632f7b28bc03f8ccf003413040395000a6
gecko-reviewers: firefox-style-system-reviewers, layout-scroll-driven-animation-reviewers, layout-reviewers, dshin

merge_pr_59862

Bump taskcluster from 99.2.1 to 100.1.0 in /tools

Bumps taskcluster from 99.2.1 to 100.1.0.

• Release notes
• Changelog
• Commits

---

updated-dependencies:

• dependency-name: taskcluster
  dependency-version: 100.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  ...

Signed-off-by: dependabot[bot] [email protected]