There's evidence this animation is causing 4+% of compositor frames
on Chrome on Android, which seems excessive for this UX. This reuses the
existing feature that was added but abandoned and only update field
trial to disable scrollbar fade on Android, by making the duration small
enough so there's only one step in the animation.
Bug: 40196369
Change-Id: I82ab399f4e1406173cc0bfdd927b918b51a5d453
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6258398
Commit-Queue: Bo Liu <boliu@chromium.org>
Reviewed-by: Vasiliy Telezhnikov <vasilyt@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1419903}
e50a16af87