ScalingFilterInterpreter: Option to force touch count to match finger

This is used for the situation where a modern pad may support hover,
and thus have a finger count != touch count, which would trigger old
(T5R2) behavior. By forcing touch count to match, we avoid that issue.

BUG=chrome-os-partner:36892
TEST=Manually tested on Samus

Change-Id: Ia48245283a4149d47acbaff3b66c40209ed61d3d
Reviewed-on: https://chromium-review.googlesource.com/253121
Commit-Queue: Andrew de los Reyes <[email protected]>
Tested-by: Andrew de los Reyes <[email protected]>
Reviewed-by: Andrew de los Reyes <[email protected]>
2 files changed