After this change, SipAudioCallImpl is the only place still using it. Change-Id: I5693bffa54f9e19cbfa70b45dfcf40fba04dedbb
http://b/issue?id=2933071 Change-Id: I0467cb5fc41bc2d6e010d20c99b7f0392fb0889e
Change-Id: Icc39e4e54768cfdcc1b20a3efe6206009b9a8d10