tree 41f4fd59e34523b9ec4bd874dcb50c861b522a5d
parent 503ce0a4b4f45201adb94c537345ee2d20661290
author Morten Stenshorne <mstensho@chromium.org> 1708467589 -0800
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1708469057 -0800

Only handle OOF-infested nested multicols once.

Otherwise we might end up with multiple fragments for the same OOFs in
the same fragmentainer.

This bug got introduced by https://crrev.com/c/5134653 , which made sure
that inner multicol info got propagated correctly also when cloning or
mutating an outer fragmentainer (when adding OOFs).

Keep a list of handled inner multicols, so that we only visit them once.
For this list to work, we need to stop calling
HandleMulticolsWithPendingOOFs() recursively from
LayoutOOFsInMulticol().

Bug: 41486207
Change-Id: I337da660834f5f44115509ab8d4a236be7ad1dc8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5307146
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Reviewed-by: Alison Maher <almaher@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#1262934}