Import wpt@c547389199647f1736be244a7ca5a874da692430

Using wpt-import in Chromium d48e0f11fe77a187e90db31f229467e488c154af.
With Chromium commits locally applied on WPT:
1c633d483b "Snap the snapped_dest_rect for backgrounds"
1061788dd2 "Reland "Add quota usage details tests for all other storage backends.""
bcd3934d05 "Add a test for ServiceWorker and AppCache interaction with claim()"
4836c563b1 "Change web platform test with mouse inputs under "pinterevents/""
5f4b032b3a "[Resource-Timing] Fix non-zero secureConnectionStart in cleartext http"


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

NOAUTOREVERT=true
TBR=robertma

No-Export: true
Change-Id: I88466ace3f1b47eb2bb79a305426340301c19765
Reviewed-on: https://chromium-review.googlesource.com/c/1400352
Reviewed-by: WPT Autoroller <wpt-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: WPT Autoroller <wpt-autoroller@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#620701}
17 files changed