[Partitioned Popins] Require HTTPS in renderer
This URL is already resolved relative to the opener. Tested in
third_party/blink/web_tests/external/wpt/partitioned-popins/partitioned-popins.secure.tentative.sub.http.window.js
Bug: 340606651
Change-Id: I10aef94c608d1f0b360e897a1b2f848817648227
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5854583
Reviewed-by: Daniel Cheng dcheng@chromium.org
Auto-Submit: Ari Chivukula arichiv@chromium.org
Commit-Queue: Ari Chivukula arichiv@chromium.org
Cr-Commit-Position: refs/heads/main@{#1354760}