[Partitioned Popins] Add RSA tests
Before we go ahead and add requestStorageAccess support, we should
verify current behavior.
Explainer: https://explainers-by-googlers.github.io/partitioned-popins/
I2P: https://groups.google.com/a/chromium.org/g/blink-dev/c/ApU_zUmpQ2g/
Bug: 340606651
Change-Id: I86b890361b25eaab935dad57ba87aab1f094c779
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5952629
Reviewed-by: Sandor «Alex» Major sandormajor@google.com
Auto-Submit: Ari Chivukula arichiv@chromium.org
Commit-Queue: Ari Chivukula arichiv@chromium.org
Cr-Commit-Position: refs/heads/main@{#1372170}