[webauthn] Move nested frame tests to WPTs
Split an internal web test that verifies that WebAuthn works in a
variety of same-origin frames into two web-platform-tests, updating them
to work with webdriver.
Bug: 372169469
Change-Id: I121a35047033a02fc34bfb2b2b79791bccf42c00
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5917271
Commit-Queue: Ken Buchanan kenrb@chromium.org
Auto-Submit: Nina Satragno nsatragno@chromium.org
Reviewed-by: Ken Buchanan kenrb@chromium.org
Cr-Commit-Position: refs/heads/main@{#1365850}