Merge "Revert^2 "trancoding: lazy-start transcoding service"" into sc-dev am: 3f24b510 am: a7ae3bd5 am: 22d9817c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15164824

Change-Id: I3cadc904a64fcf27c29e7c7ce7e2b2916e0c5363