Example results:
https://test-results.appspot.com/data/layout_results/WebKit_Linux_Trusty_Leak/17441/layout-test-results/results.html

Example test:
https://chromium.googlesource.com/chromium/src/+/238613f2364a704efa82a4e252f6c2058d7b1924/third_party/WebKit/LayoutTests/http/tests/credentialmanager/credentialscontainer-preventsilentaccess-basics.html

Related tests to be updated:
http/tests/loading/htxg/resources/htxg-util.js
http/tests/credentialmanager/credentialscontainer-create-origins.html
http/tests/credentialmanager/credentialscontainer-get-errors.html
http/tests/credentialmanager/mock-authenticator.html
http/tests/credentialmanager/credentialscontainer-get-origins.html
http/tests/credentialmanager/credentialscontainer-get-from-nested-frame.html
http/tests/credentialmanager/tools/virtual-authenticator-environment-manual.html
http/tests/credentialmanager/register-then-sign.html
http/tests/credentialmanager/resources/publickey-create-helper.html
http/tests/credentialmanager/resources/publickey-get-helper.html
http/tests/credentialmanager/virtual-navigator-credentials.html
http/tests/credentialmanager/credentialscontainer-create-basics.html
http/tests/credentialmanager/credentialscontainer-preventsilentaccess-basics.html
http/tests/credentialmanager/credentialscontainer-get-basics.html
http/tests/credentialmanager/credentialscontainer-create-from-nested-frame.html
http/tests/credentialmanager/credentialscontainer-store-basics.html
http/tests/security/powerfulFeatureRestrictions/resources/geolocation.html
http/tests/budget/get-cost.html
http/tests/budget/reserve.html
http/tests/budget/resources/instrumentation-service-worker.js
http/tests/budget/get-budget.html