DO NOT MERGE SoundPool: add lock for findSample access from SoundPoolThread am: 3d6a714980 am: 208bc477d9  -s ours am: c56555962b am: f4dfde92ea  -s ours am: 92edb173a7 am: 9161b6adc9 am: 8f283a894d  -s ours
am: 6d3f50d9c3

* commit '6d3f50d9c31544a3cb9ae76c9ac08f92eb83c449':
  DO NOT MERGE SoundPool: add lock for findSample access from SoundPoolThread