Rename position-try-options to position-try-fallbacks
This has 3 LGTMs to ship:
https://groups.google.com/a/chromium.org/g/blink-dev/c/kJwhHYXupWk/m/qYfaEe98CAAJ
Note that this CL also adds a virtual test suite that re-enables
the position-try-options property. I wanted to include that in
the same CL, because I plan to try to merge this CL back to M128,
and I'd like the test coverage to follow.
Fixed: 349600667
Change-Id: Ibd6415c1da80a1e1ca34874fece9fcf360d40668
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5739360
Reviewed-by: Mike Taylor miketaylr@chromium.org
Commit-Queue: Mike Taylor miketaylr@chromium.org
Auto-Submit: Mason Freed masonf@chromium.org
Reviewed-by: Rune Lillesveen futhark@chromium.org
Cr-Commit-Position: refs/heads/main@{#1334247}