1849574 - [wpt-sync] Sync PR 41557 - Locate parent fragment of nested OOF multicol correctly.

Status: RESOLVED FIXED

(Core :: Layout: Columns, task, P4)

Description

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

Sync web-platform-tests PR 41557 into mozilla-central (this bug is closed when the sync is complete).

PR: https://github.com/web-platform-tests/wpt/pull/41557
Details from upstream follow.

Morten Stenshorne <[e-mail]> wrote:

Locate parent fragment of nested OOF multicol correctly.

The code didn't sufficiently examine the containing block chain. We need
to locate the nearest non-out-of-flow containing block that has a
non-out-of-flow fragmentation context root as its containing block
(unless the fragmentation context root is the LayoutView (printing),
which is hard-coded as absolutely positioned) - and then place the new
fragment under this fragmentation context root. This is what the
fragment tree looks like, so, when replacing a fragment after OOF
layout, it needs to behave exactly the same, or we'll find to find the
old fragment in the fragment tree.

Bug: 1459154
Change-Id: I0a3ae3ea07331db13566883f98dee3f1a989e5c4
Reviewed-on: https://chromium-review.googlesource.com/4798090
WPT-Export-Revision: 5ef2e8a9819f534268ed055944b50f7d3da88406

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=20725e8089bb4c0c41c1d5e9cdf1d449c08f3cc6

Comment 2

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

CI Results

Ran 8 Firefox configurations based on mozilla-central, and Firefox, Chrome, and Safari on GitHub CI

Total 1 tests

Status Summary

Firefox

PASS: 1

Chrome

PASS: 1

Safari

PASS: 1

Links

Gecko CI (Treeherder)
GitHub PR Head
GitHub PR Base

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/e3a4f13ebd9e
[wpt PR 41557] - Locate parent fragment of nested OOF multicol correctly., a=testonly

Comment 4

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/e3a4f13ebd9e