Import wpt@e6f15e377e293ff7d2d73a3b167e4c2bcf4771bc

Using wpt-import in Chromium 04fbda1c.
With Chromium commits locally applied on WPT:
6386d9d8 "Update service_worker_unregister_and_register()"
40e4a155 "Reland "[Trusted Types] Remove TrustedURL.""


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:
ksakamoto@chromium.org:
  external/wpt/resource-timing

NOAUTOREVERT=true
TBR=lpz

No-Export: true
Change-Id: Ia8fa99b67039f0b3d7517fb96f5ca5bf482637af
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1866703Reviewed-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@{#707130}

third_party/blink/web_tests/external/wpt/resource-timing/SyntheticResponse.py

 import urllib
-import sys, os
-sys.path.append(os.path.join(os.path.dirname(__file__), "../common/"))
 import sleep
 
 def main(request, response):