Eight WPTs from the `css/` directory are failing in ToT with the `AsyncOverflowScrollingEnabled` web preference set to true. A couple of the failures are not concerning, but at any rate, here is a summary. The failed tests: imported/w3c/web-platform-tests/css/compositing/mix-blend-mode/mix-blend-mode-parent-element-overflow-scroll.html imported/w3c/web-platform-tests/css/css-grid/grid-model/grid-container-scrollbar-vertical-lr-001.html imported/w3c/web-platform-tests/css/css-grid/grid-model/grid-container-scrollbar-vertical-rl-001.html imported/w3c/web-platform-tests/css/css-masking/clip/clip-rect-scroll.html imported/w3c/web-platform-tests/css/css-overflow/overflow-auto-scrollbar-gutter-intrinsic-003.html imported/w3c/web-platform-tests/css/css-position/position-fixed-scroll-nested-fixed.html imported/w3c/web-platform-tests/css/css-scrollbars/textarea-scrollbar-width-none.html imported/w3c/web-platform-tests/css/css-ui/outline-negative-offset-composited-scroll.html Of these eight tests, `imported/w3c/web-platform-tests/css/css-overflow/overflow-auto-scrollbar-gutter-intrinsic-003.html` and `imported/w3c/web-platform-tests/css/css-scrollbars/textarea-scrollbar-width-none.html` only have a 0.01% image diff, and shouldn't really be failing. While the other tests have regressed, they now show the same failure mode as what WebDriver produces (i.e. WKTR test results and wpt.fyi test results match).
<rdar://problem/117728258>
Adding four more WPTs to the list of failures: imported/w3c/web-platform-tests/css/css-scroll-snap/snap-inline-block.html imported/w3c/web-platform-tests/css/css-transforms/transform3d-preserve3d-001.html imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-element.html imported/w3c/web-platform-tests/css/cssom-view/scroll-behavior-smooth-positions.html
Test gardening commit 282298@main (2570d3dbdc76): <https://commits.webkit.org/282298@main> Reviewed commits have been landed. Closing PR #32256 and removing active labels.