Added new constructor to AudioGroup.

Test: basic sanity
Bug: 140872785
Merged-in: Ic7ca45d5fab27469a3cc8654cd05a10bd55f7e87
Change-Id: Ic7ca45d5fab27469a3cc8654cd05a10bd55f7e87
(cherry picked from commit d5a71c7bac047ea8b4ae963ecb476710dbf11126)
1 file changed