[PEPC] Restrict Permission Element CSS properties

Override AdjustStyle to apply margin and outline offset restrictions.

Use a new property and CascadeFilter to only allow certain properties.

Add multiple TODO's for various other needed style restrictions that are
more complexity.

Restrictions based on the following spreadsheet: https://docs.google.com/spreadsheets/d/12A0zc4VKaYegBcr38V1MkHiSXA7rlR983UXTUkNYc6A/edit#gid=0&fvid=230619400

Bug: 1462930
Change-Id: If6f154ac4f2f517281360781da88bfc630ac7d48
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5301161


Reviewed-by: Mason Freed <masonf@chromium.org>
Commit-Queue: Andy Paicu <andypaicu@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1267461}