Rambi: Enable Fling Buffer Suppress Zero Length Scrolls

There were issues with 0 velocity flings due to zero length scrolls
reported while scrolling with a resting finger.

BUG=chrome-os-partner:28028
TEST=rest finger on bottom of touchpad. Then scroll and watch for the
fling after the scroll

Change-Id: I7bad406698da512a14b04747bb77288c062718f8
Reviewed-on: https://chromium-review.googlesource.com/195439
Reviewed-by: Benson Leung <bleung@chromium.org>
Commit-Queue: Dennis Kempin <denniskempin@chromium.org>
Tested-by: Dennis Kempin <denniskempin@chromium.org>
1 file changed