am 18f75bd4: am e88192b9: Cleanup fixes for ScaleGestureDetector

Merge commit '18f75bd45cdbfaf175364552f2d0d0dc3b2835c0'

* commit '18f75bd45cdbfaf175364552f2d0d0dc3b2835c0':
  Cleanup fixes for ScaleGestureDetector