GitLab

We have replaced ContinuousMouseScrollBy with
gpubenchmarking.smoothscrollbyXY to simulate scroll actions, now we can
remove it from eventsender.

Bug: 1047176
Change-Id: I770c2ba9a8a79f875d46be379ceec533b65e837d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2361184Reviewed-by: David Bokan <bokan@chromium.org>
Reviewed-by: Alex Moshchuk <alexmos@chromium.org>
Commit-Queue: Lan Wei <lanwei@chromium.org>
Cr-Commit-Position: refs/heads/master@{#800314}