1945918 - [wpt-sync] Sync PR 50498 - Round main thread scroll offsets

Status: RESOLVED FIXED

(Core :: Layout: Scrolling and Overflow, task, P4)

Description

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

Sync web-platform-tests PR 50498 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/50498
Details from upstream follow.

Robert Flack <[e-mail]> wrote:

Round main thread scroll offsets

Scroll usually snaps to the nearest pixel. The main thread
scroll offset should be rounded as well to ensure consistency
with compositor scrolls

Bug:394306944
Change-Id: I9a6893c44157f9b743defeba632d573ca1459425
Reviewed-on: https://chromium-review.googlesource.com/6226305
WPT-Export-Revision: a69da36cdb4e5f132b37f307c887648aab00db4e

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=21e7f1a37a413e3558badb88410e22b6e49fb251

Comment 2

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

CI Results

Ran 9 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 1 tests and 1 subtests

Status Summary

Firefox

OK : 1
PASS: 1
FAIL: 1

Chrome

OK : 1
FAIL: 1

Safari

OK : 1
FAIL: 1

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Details

New Tests That Don't Pass

• /css/css-scroll-snap/snap-after-initial-layout/initial-snap-matches-scroll.html [wpt.fyi]
  • initial scroll snap matches scrolling scroll snap position.: FAIL [Gecko-android-em-7.0-x86_64-lite-qr-opt-geckoview, Gecko-android-em-7.0-x86_64-qr-debug-geckoview, Gecko-android-em-7.0-x86_64-qr-opt-geckoview], PASS [Gecko-linux1804-64-qr-debug, Gecko-linux1804-64-qr-opt, Gecko-windows11-32-24h2-debug, Gecko-windows11-32-24h2-opt, Gecko-windows11-64-24h2-debug, Gecko-windows11-64-24h2-opt, GitHub] (Chrome: FAIL, Safari: FAIL)

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/07f9c23afca9
[wpt PR 50498] - Round main thread scroll offsets, a=testonly
https://hg.mozilla.org/integration/autoland/rev/5ea03e27a29f
[wpt PR 50498] - Update wpt metadata, a=testonly

Comment 4

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/07f9c23afca9
https://hg.mozilla.org/mozilla-central/rev/5ea03e27a29f