Import wpt@3b72e3fa21de849212269eccb88cb40750659237

Using wpt-import in Chromium f68077fb7f5a3f3b5bee2a45d07dc1b0eeca92c7.
With Chromium commits locally applied on WPT:
d7762551fd "Consistently use single quotes in Background Fetch WPTs."


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: I08929dba303e26a5d927e92ff5c3077a27c19903
Commit-Queue: Blink WPT Bot <>
Reviewed-by: Blink WPT Bot <>
Cr-Commit-Position: refs/heads/master@{#590210}
3 files changed