[webauthn] Move same-origin frame web tests to WPT
Move same-origin frame web tests from internal to WPT for make
credential and get assertion.
Bug: 372169469, 40178678
Change-Id: I1a56a949f490eb46a588002239045d10f0430e70
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5921497
Commit-Queue: Nina Satragno nsatragno@chromium.org
Reviewed-by: Ken Buchanan kenrb@chromium.org
Cr-Commit-Position: refs/heads/main@{#1366400}