Import wpt@e2c6cf967cc9d5528ccf85c577d1cf7800ff808e

Using wpt-import in Chromium 4ba1c8da.

Build: https://build.chromium.org/p/chromium.infra.cron/builders/wpt-importer/builds/1660

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:
rouslan@chromium.org, mathp@chromium.org:
  external/wpt/payment-request

TBR=qyearsley@chromium.org

No-Export: true
Change-Id: I24cd14a12b95c0165056623ccf52afc02497d5f4
Reviewed-on: https://chromium-review.googlesource.com/663622


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@{#501362}