1625482 - [wpt-sync] Sync PR 22496 - [ScrollTimeline] Do not show scrollbar to bypass flakiness on early Mac

Status: RESOLVED FIXED

(Testing :: web-platform-tests, task, P4)

Description

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Sync web-platform-tests PR 22496 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/22496
Details from upstream follow.

Yi Gu <[e-mail]> wrote:

[ScrollTimeline] Do not show scrollbar to bypass flakiness on early Mac

The flaky tests are not related to worklet animations because it's the
reference file that is not painted correctly.

Mac scrollbars have their own painting path and they paint greedily.
There might be a race condition on the order of painting that caused the
scrollbar being completely black.

Bug: 946534
Change-Id: I5e2fab05e7a5ee5ec09dcab2a03606ca5ce1fd0c
Reviewed-on: https://chromium-review.googlesource.com/2124296
WPT-Export-Revision: 340fd9a6644701c2d17ce135785d3725bd8c49c7

Comment 1

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Pushed to try (stability) https://treeherder.mozilla.org/#/jobs?repo=try&revision=808a8d27121fb0b75ed4b852bac0ba6687d73fd2

Comment 2

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

CI Results

Ran 0 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 3 tests

Status Summary

Firefox

TIMEOUT: 3

Chrome

PASS : 3

Safari

TIMEOUT: 3

Links

GitHub PR Head
GitHub PR Base

Details

New Tests That Don't Pass

/animation-worklet/worklet-animation-with-scroll-timeline-root-scroller.https.html: TIMEOUT (Chrome: PASS, Safari: TIMEOUT)
/animation-worklet/worklet-animation-with-scroll-timeline.https.html: TIMEOUT (Chrome: PASS, Safari: TIMEOUT)
/animation-worklet/worklet-animation-with-scroll-timeline-and-display-none.https.html: TIMEOUT (Chrome: PASS, Safari: TIMEOUT)

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/0dcb992b5122
[wpt PR 22496] - [ScrollTimeline] Do not show scrollbar to bypass flakiness on early Mac, a=testonly

Comment 4

[Stefan Hindli [:stefan_hindli]]

https://hg.mozilla.org/mozilla-central/rev/0dcb992b5122