Import wpt@c483fe4ed3e69bf1f9faf8e06ef39b8405dd7625

Using wpt-import in Chromium 1f46b374ce939d811efd0f43a9222b958e847594.


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:


No-Export: true
Change-Id: I06dd93fb9a06214970f605caa5223688fd048540
Commit-Queue: Blink WPT Bot <>
Reviewed-by: Blink WPT Bot <>
Cr-Commit-Position: refs/heads/master@{#576580}
6 files changed