tree aaf76be43d08ce1298fc97e67bf897cbff26f30a
parent 1280feb67a0050a2ad832ab73cb531cbd6332289
author Morten Stenshorne <mstensho@chromium.org> 1647942801 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1647944582 -0700

Check writing direction when painting column rules.

Rather than deducing it from the column offsets relatively to each
other, use computed style to check writing-mode and direction.

We'd fail a DCHECK if we ended up with saturated LayoutUnit values for
vertical-rl multicol containers (because we'd incorrectly think that
writing mode was horizontal).

Bug: 1308191
Change-Id: I3029d66949188bc149bf15ca9c709ec6ad105c68
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3540360
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/main@{#983741}