[WPT] Add tests for speculation-rules prefetch + ServiceWorker
For testing the upcoming ServiceWorker + speculation rules prefetch
as well as regression testing for https://crbug.com/379076354.
Bug: 40947546, 379076354
Change-Id: I3863217f9a3dc2902201d74e354d6b99541ba2b0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6023660
Commit-Queue: Hiroshige Hayashizaki hiroshige@chromium.org
Reviewed-by: Kouhei Ueno kouhei@chromium.org
Reviewed-by: Hiroki Nakagawa nhiroki@chromium.org
Cr-Commit-Position: refs/heads/main@{#1387011}