Import wpt@e462f618e3765749ca8b0101987759d37d746d32

Using wpt-import in Chromium 3fb53cf0d187b9537160ad967975f17641d59c1f.
With Chromium commits locally applied on WPT:
a9045946af "Add a fail-fast for longtask layouttests"


Build: https://ci.chromium.org/buildbot/chromium.infra.cron/wpt-importer/21189

Note to sheriffs: This CL imports external tests and adds
expectations for those tests; if this CL is large and causes
a few new failures, please fix the failures by adding new
lines to TestExpectations rather than reverting. See:
https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md

Directory owners for changes in this CL:
meade@chromium.org:
  external/wpt/web-animations
rouslan@chromium.org, mathp@chromium.org:
  external/wpt/payment-request

TBR=foolip

No-Export: true
Change-Id: I87288052fdbcab0a3a1b79325c964085695ab2a5
Reviewed-on: https://chromium-review.googlesource.com/1135205
Commit-Queue: Blink WPT Bot <blink-w3c-test-autoroller@chromium.org>
Reviewed-by: Blink WPT Bot <blink-w3c-test-autoroller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#574635}
157 files changed