WPT import https://crrev.com/c/1172099 introduced new failures in external/wpt/infrastructure:

List of new failures:
external/wpt/infrastructure/server/secure-context.https.any.serviceworker.html [ Skip ]

This import contains upstream changes from 848ceffad26e92d47ffe790ed8b650906b2c2343 to d31eacaff0c4d96f8c125c21faac6e0f75dd683c:
Sync Mozilla tests as of https://hg.mozilla.org/mozilla-central/rev/d0a17fc80dabd76aca148d42684a385ba41f9ed8 . (#12418): https://github.com/web-platform-tests/wpt/commit/d31eacaff0c4d96f8c125c21faac6e0f75dd683c
Test that there's no help cursor on help links (#12415): https://github.com/web-platform-tests/wpt/commit/619c31856b3d91ab022f908c1154aff7aa9f2bde
Fix misspelling "existance": https://github.com/web-platform-tests/wpt/commit/5ddd0cebd3664b001ebc3853ac4029e783daecde
Web Locks API: Update spec/explainer/idl links: https://github.com/web-platform-tests/wpt/commit/6b3194d4b26ad3c2746e2b2773805e792b1f879d
[PE] Allow blending for svg root etc.: https://github.com/web-platform-tests/wpt/commit/b382ac7192087da0a7439902e20be76ab7587ee8
Rewrite Budget API IDL test to use idl_test (#12390): https://github.com/web-platform-tests/wpt/commit/13f24abbc0da9d73ede59516bb6289592ff94216
[LayoutNG] Flip for writing mode when calculating inline bounding box.: https://github.com/web-platform-tests/wpt/commit/c960c4cf4c4849ee5207d9235bb4da7939a53d58
[Background Fetch] Reject BackgroundFetchUpdateEvent::UpdateUI if called again: https://github.com/web-platform-tests/wpt/commit/d6763dd2689061fb3dc5175852f56009fd3d1103
Upstream a fix for Servo's webdriver harness.: https://github.com/web-platform-tests/wpt/commit/8eaf82f1a65d1e4f369e0ebb27045d516457aedc
Fix service worker tests generated from non-https .any.js: https://github.com/web-platform-tests/wpt/commit/bfec5399443c15c7a201a3d2b5505967433f570c [affecting this directory]
[LayoutNG] Propagate abspos inline container: https://github.com/web-platform-tests/wpt/commit/a827a82cd6be5bfca648b98904c45e2fa3777d20
Replace single integers N in fuzzy() and fuzzy-if() with 0-N ranges. (#12387): https://github.com/web-platform-tests/wpt/commit/8346acdbd41f02581506b233d4a6fe92999f464d