Merge "Dynamic Audio Buffer (1/3)" am: 75da9f9f27 am: 6b3d9261b0

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1398274

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I74b1f32014f0ecb095b3e689e8b1cb1c62eb539f