Bug 1760593 [wpt PR 33280] - A nested multicol fragment may be found inside a line...

Bug 1760593 [wpt PR 33280] - A nested multicol fragment may be found inside a line., a=testonly

Automatic update from web-platform-tests
A nested multicol fragment may be found inside a line.

If we have an inline formatting context with a floated multicol with an
OOF inside, and the floated multicol is inside another fragmentation
context, we failed to find and replace the fragment in the special OOF
layout pass for block fragmentation.

One does not (always) simply search inside child fragments of the
containing block.

Bug: 1307990
Change-Id: Icfe3e12d9de6c440a4010e6b7f7f99a6bbd3e5a3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3540020
Reviewed-by: Alison Maher <almaher@microsoft.com>
Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/main@{#983739}

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wpt-commits: 1280feb67a0050a2ad832ab73cb531cbd6332289
wpt-pr: 33280