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: Id49674c886916db969c95ee585537124aeb0a75d Reviewed-on: https://chromium-review.googlesource.com/252750 Reviewed-by: Andrew de los Reyes <[email protected]> Tested-by: Andrew de los Reyes <[email protected]> Commit-Queue: Andrew de los Reyes <[email protected]>