Report the failure back to the organizer

 - create taskfragment
 - startActivity in taskfragment
 - reparent children
 - delete taskfragment

Bug: 189385246
Test: atest TaskFragmentOrganizerControllerTest
Change-Id: Ibddb6d9f83e707ac8a27b117777cc3ddc45bbef9
4 files changed