Merge commit '97b108532f04f72af035e372be7b827f77888650' * commit '97b108532f04f72af035e372be7b827f77888650': Edge of screen slop detection for ScaleGestureDetector.
Merge commit '97b108532f04f72af035e372be7b827f77888650' * commit '97b108532f04f72af035e372be7b827f77888650': Edge of screen slop detection for ScaleGestureDetector.