am 6d0fec2d: Refactor input reader to support new device types more easily.

Merge commit '6d0fec2de3601821f4f44eeb7d7deedebb2b7117' into gingerbread-plus-aosp

* commit '6d0fec2de3601821f4f44eeb7d7deedebb2b7117':
  Refactor input reader to support new device types more easily.