tree 34a820191708d51cee417e8f528cf0088f95d86a
parent 3b61d2dfe37898072c227013d427ce69f9158eab
author Jean-Michel Trivi <jmtrivi@google.com> 1449518371 -0800
committer Jean-Michel Trivi <jmtrivi@google.com> 1452643842 -0800

Audio recording notification API

AudioService can register a recording callback with AudioSystem.
Callbacks are handled in a new class, RecordingActivityMonitor.
This class notifies registered AudioManager instances
  of updates, only if this AudioManager has client callbacks.
Each AudioManager dispatches updates to its registered
  callbacks.

Bug 22876530

Change-Id: I95c6e5ec0631e53af53a490bcecca96089490089