am 28c55a37: Merge "Adding the (lost) buttons back upon disconnected calls, see b/11028671." into klp-dev

* commit '28c55a37424ca3e5f5250a95555210d5c885eb90':
  Adding the (lost) buttons back upon disconnected calls, see b/11028671.
tree: 7cc91b261fcd4396fc76cda99d18d1b5c1440cd6
  1. InCallUI/