WPT import https://crrev.com/c/1186023 introduced new failures in external/wpt/html/rendering/non-replaced-elements/the-fieldset-element-0:

List of new failures:
external/wpt/html/rendering/non-replaced-elements/the-fieldset-element-0/fieldset-transform-translatez.html [ Failure ]

This import contains upstream changes from 61aa8d06ff3cf42179dc08c63e65dbbd3127762f to 4da456ddbb7fd4572b39f14a475187d77d0a1922:
Remove non-conformant ServiceWorker test case: https://github.com/web-platform-tests/wpt/commit/4da456ddbb7fd4572b39f14a475187d77d0a1922
Test exposure of navigator.serviceWorker to data: iframes: https://github.com/web-platform-tests/wpt/commit/a28ef93497645e406377565edb1e4c427ad6a859
Add ability to send user activation context to message port and workers.: https://github.com/web-platform-tests/wpt/commit/a8cc1649096f1ecf9adf9ab3a92c7c229435637e
HTML: test fieldset and transform: translateZ(0): https://github.com/web-platform-tests/wpt/commit/dd42d42f926c53a314085cb846be35bb5df8d838 [affecting this directory]
Sync disabled state of number control regardless of appearance.: https://github.com/web-platform-tests/wpt/commit/46ab10349582126de3ef184f6795c8850346cbbd [affecting this directory]
Enable video requests from getDisplayMedia(): https://github.com/web-platform-tests/wpt/commit/3f2ebeba83bc6a17119b455f31155e6085ce4fcb
Match the 'is rendered' definition from the spec in innerText.: https://github.com/web-platform-tests/wpt/commit/7a965b6973d265809e848911c951b7cb370c3c28 [affecting this directory]