am 8a07fbec: am 6519346a: Fix potential NPE in ConferenceManagerPresenter

* commit '8a07fbecb3f06abe88d065df8631e062be1f31ae':
  Fix potential NPE in ConferenceManagerPresenter
tree: 9b84668a0a7d4405203a7b9c0a2f6574515cd19f
  1. InCallUI/