WPT import https://crrev.com/c/1402362 introduced new failures in external/wpt/webxr:

List of new failures:
external/wpt/webxr/idlharness.https.window.html new failing tests: https://crrev.com/c/1402362/4/third_party/blink/web_tests/external/wpt/webxr/idlharness.https.window-expected.txt

This import contains upstream changes from 4adce83d1f2b08fa2e92427c4687d0cf535aee53 to f362bab23d2230648c211d342caf028666937e7b:
Update interfaces/webxr.idl (#14615): https://github.com/web-platform-tests/wpt/commit/f362bab23d2230648c211d342caf028666937e7b
SignedExchange: Verify if the response is cacheable by a shared cache: https://github.com/web-platform-tests/wpt/commit/64bf9c62a12f55d61f209a329f93b0021964da04
[wpt/upgrade-insecure-requests] Fix generateRedirect(): https://github.com/web-platform-tests/wpt/commit/62c9dd3a496f4fa3834741daa45c645ad63025a6
canvas: Restore the data: URL special case for tainting.: https://github.com/web-platform-tests/wpt/commit/ebe98e2c971c6e33b7fd94264a96bfddd8d7b347