Merge "Require calls to BluetoothA2dp#setBufferLengthMillis to pass a non-negative value" into sc-dev am: 7a3cb23b am: 5244348b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15404294

Change-Id: Ie6d9a77546ddcd0d809bdde2ae0635751c0a585b