Import wpt@638f1774d565ba228feee10dc3707dea566bc45f

Using wpt-import in Chromium d998cfeb.

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: I42cff1fb06e632c0598a10a64abb422b80a518c6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2031907Reviewed-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@{#737223}

third_party/blink/web_tests/FlagExpectations/enable-gpu-rasterization

@@ -10,4 +10,4 @@ crbug.com/1026375 [ Win ] media/video-controls-auto-hide-after-play-by-touch.htm
 crbug.com/1026375 [ Win ] media/video-controls-hide-after-touch-on-control.html [ Failure Pass ]
 crbug.com/1026375 [ Win ] media/video-controls-hide-on-move-outside-controls.html [ Failure Pass ]
 crbug.com/1026375 [ Win ] media/video-controls-visibility-multimodal-touch-after-mouse.html [ Failure Pass ]
-crbug.com/1026375 [ Win ] media/video-persistence.html [ Failure Pass ]
\ No newline at end of file
+crbug.com/1026375 [ Win ] media/video-persistence.html [ Failure Pass ]