Add failing COOP noopener-allow-popups tests and flags (#46979)
This CL adds the flags and failing tests for [1], to clearly separate
them from the functional changes.
[1] https://chromium-review.googlesource.com/c/chromium/src/+/5581251
Bug: 344963946
Change-Id: I1320fd6893a3ba25d93f89efd5a30e151a69889b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5640893
Commit-Queue: Yoav Weiss (@Shopify) yoavweiss@chromium.org
Reviewed-by: Vladimir Levin vmpstr@chromium.org
Reviewed-by: Arthur Sonzogni arthursonzogni@chromium.org
Cr-Commit-Position: refs/heads/main@{#1322722}
Co-authored-by: Yoav Weiss yoavweiss@chromium.org