[@container] Make style() queries for IACVT values false
Also fix crash for querying IACVT value for registered property.
Bug: 376834363
Change-Id: Ief7718b633690992b3720b0100743f0f84c0525b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5999463
Reviewed-by: Anders Hartvoll Ruud andruud@chromium.org
Commit-Queue: Rune Lillesveen futhark@chromium.org
Cr-Commit-Position: refs/heads/main@{#1379633}