tree 10b7cc718704242cddb8e8c6cef6ceffd4c160be
parent bf68a16af57a0bfe141159d7e4415372f9bedf6b
author Amy Zhang <amyjojo@google.com> 1606781678 -0800
committer Amy Zhang <amyjojo@google.com> 1607736644 -0800

Add a FrontendClientCallback struct and enable callbacks in
FrontendClient

Test: make libmedia_tv_tuner
Bug: 174095851
Change-Id: I7b4c7f7a862835a7bb780ed52220e4f262c3cf98