[automerger skipped] Clean up ownership in external/exoplayer/ am: a0cf58879f am: 830b3f7e4b -s ours

am skip reason: Merged-In I180365755982ec1dffdaa5a5a2af5595f4788571 with SHA-1 a0cf58879f is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/exoplayer/+/15778520

Change-Id: Ia27f05411100f26368192c06276db8f8cb43de29