merge_pr_49020

Add WebDX feature mapping for font-variant-position.

Change-Id: I3343f95c1b34e1f69817a4e788c9b2dfdd618c2b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6000471
Reviewed-by: Shunya Shishido [email protected]
Reviewed-by: Rune Lillesveen [email protected]
Commit-Queue: Steinar H Gunderson [email protected]
Cr-Commit-Position: refs/heads/main@{#1379604}