am 436328c1: Merge "Check for null during notification hangup Intent receipt." into klp-dev

* commit '436328c16e448ac70d676e73469a12d69077e8e9':
  Check for null during notification hangup Intent receipt.
tree: a4003c19fbdcf9acc3a201b5422a7e69bc827657
  1. InCallUI/