Bouncer: Use Y coord delta instead of velocity.

Use Y coord delta instead of velocity to determine interaction type for
falsing manager. This is because it can often times be incorrect and
lead to a TypeClassifier error.

Bug: 224785498
Test: Manual on 2 devices
Change-Id: I6b9e1ad582fcb2f8bf0be9e70766c1424e44e4cc
1 file changed