GitLab

Previously we excluded swiping input. We now include swipes (map panning,
carousel rotation), but still exclude scroll.

Also records a UKM.

Bug: 803935
Change-Id: I8f9d5a77ad61221eb9b614e8d4e11e2b757af9e2
Reviewed-on: https://chromium-review.googlesource.com/894826
Commit-Queue: Timothy Dresser <tdresser@chromium.org>
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Reviewed-by: Bryan McQuade <bmcquade@chromium.org>
Cr-Commit-Position: refs/heads/master@{#534178}