am 9972eb69: am 857b0f4e: am ccbb7447: Merge "Grey out merge button after it is clicked." into lmp-mr1-dev

* commit '9972eb695a230752b01dae5a6ab22974f08468ef':
  Grey out merge button after it is clicked.
tree: 2c9db362d196bf82df17b2ee390dcd99aff48058
  1. InCallUI/