Support local disconnect of empty IMS Conference.
Add support for locally disconnecting an IMS conference when the
participant count goes to 0.
Refactor carrier config access in ImsConference to use a builder passed
in, facilitating easier testing and abstraction of carrier config from
the ImsConference class.
Test: Add unit test to verify local disconnect when participant count is
zero.
Test: Use conference event package test cmd/intents to inject test CEP to
simulate a conference dropped to 0 participants. Verify IMS conference is
disconnected.
Bug: 151707520
Fixes: 154245549
Merged-In: Ie88bf2f6cfc6b7146b3d04cbeab377f9322e349d
Change-Id: I024b6e8705640460c88d8418256b59beaa90362f
5 files changed