column-span:all in nested multicol requires re-insertion of fragmentainer groups.
A column set that follows a spanner will typically have an incorrect logical
top in the first layout pass (because the spanner hasn't been laid out yet). We
already have code in place to make sure that we re-lay out when we need to, but
we also need to delete and re-insert fragmentainer groups when this happens in
a nested fragmentation context.
If a column set gets a new logical top, it means that previously inserted
fragmentainer groups are now out of sync with reality, and have to be
re-inserted.
Remove the BalancedColumnHeightCalculation enum. There's no need for it
anymore, since picking calculation mode is now something we need to do for each
individual column set. m_tallestUnbreakableLogicalHeight is now reset in
resetColumnHeight() (that's where it ought to have been all along, anyway).
BUG=447718
R=leviw@chromium.org
Review URL: https://codereview.chromium.org/1489663003
Cr-Commit-Position: refs/heads/master@{#362492}
10 files changed
