commit f86d269d7cd4141129d2f4b18035e133324c15b7
author Atneya <atneya@google.com> Thu Oct 14 14:02:36 2021 -0400
committer Atneya <atneya@google.com> Wed Oct 20 16:26:05 2021 -0400
tree 6675c0002e57176b9f09c0242ff5ca90070041b1
parent f727b4d9342ffe4b3a1cb563e3a9d11747ab0e6e

Refactor AudioTrack callback to Interface

Part 1 of a refactor of AudioTrack callback to increase type safety.
 - Replace callback_t with IAudioTrackCallback listener interface for
seperate notifications for each event type. Retain legacy_callback_t
 - Duplicate set/constructor methods to provide ABI stability
 - LegacyCallbackWrapper to wrap legacy_callback_t consuming methods
 - Retain wp<IAudioTrackCallback> to avoid ownership cycles and provide
 clear ownership semantics
 - Take ownership of LegacyCallbackWrapper if necessary

Bug: 199156212
Test: Compiles
Change-Id: Id089da86a617cb6273ea1d4efeaf2c854df10ede