Merge "[Media] Ensure that we update the seekbar visibility whenever its...

Merge "[Media] Ensure that we update the seekbar visibility whenever its enabled status changes." into tm-dev am: 94d8a423 am: 8c81e2aa am: aeb114db

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17804545



Change-Id: Id4ac396e64cd59fdf3c584bf035995ef81945e22
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>