[ScrollTimeline] Upstream NaN currentTime tests to WPT

This CL upstreams the NaN related currentTime tests to WPT. There are no
behavioral changes.

Bug: 911254
Change-Id: Ide27accae72cc55654890754ac404c7827889d09
Reviewed-on: https://chromium-review.googlesource.com/c/1366264
Reviewed-by: Majid Valipour <majidvp@chromium.org>
Commit-Queue: Stephen McGruer <smcgruer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#615137}
1 file changed