Fix potential NPE in ImsCall notifyConferenceStateUpdated.

NPE is possible if the state or state.mParticipants are null; added a
check for these scenarios.

Bug: 23742605
Change-Id: Ie2f7f11d1f76eb46e21a09a828287451a7a1675d
1 file changed
tree: 35534c0ff905d341680ae64c140f413940875012
  1. src/
  2. Android.mk
  3. CleanSpec.mk
  4. README.txt