Add up-to-date ExoPlayer copy am: 1382e73885 am: 5d0f60cdbd

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/exoplayer/+/17741246

Change-Id: I33ae313a80e3a45ce8e5f900debb102f6809ff9e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>