base

AudioService: force use impacts BECOMING_NOISY intent

Update the list of audio devices that cause the
  ACTION_AUDIO_BECOMING_NOISY intent to be broadcast according
  to the FOR_MEDIA forced configuration.
Synchronize access to list of "noisy" audio devices on the
  connected devices, as it can be updated from different
  threads.

Bug 18313377

Change-Id: Iffd95861d0796691350b0e19b596dd1db0567836