am 8979fbc8: am 7118e196: am 2b138f87: Show correct call buttons depending on voice/video call.

* commit '8979fbc8ca42a0790ebedb719396d707efc5d5b0':
  Show correct call buttons depending on voice/video call.
tree: adbdd6fdb07e1fd18f6524ac752b4c0be425dc03
  1. InCallUI/