[layout] Consider stable scrollbars for container queries.
This implements the resolution at:
w3c/csswg-drafts#10043 (comment)
Basically we zero out scrollbars from the fragment-geometry if they
are auto.
Fixed: 346975763
Change-Id: Ic77b2a39f4830ff6dbbd080c7cc4f20734597821
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5727150
Reviewed-by: David Grogan dgrogan@chromium.org
Commit-Queue: David Grogan dgrogan@chromium.org
Cr-Commit-Position: refs/heads/main@{#1331243}