merge_pr_49306

[@container] Rename overflowing scroll-state to scrollable

Resolved in [1].

[1] w3c/csswg-drafts#11182 (comment)

Bug: 367764865
Change-Id: Id268190787ed876aff7afefdf9b3bad9ce9e23eb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6022976
Commit-Queue: Rune Lillesveen futhark@chromium.org
Reviewed-by: Anders Hartvoll Ruud andruud@chromium.org
Auto-Submit: Rune Lillesveen futhark@chromium.org
Cr-Commit-Position: refs/heads/main@{#1386131}