Merge "DO NOT MERGE SoundPool: add lock for findSample access from SoundPoolThread" into lmp-dev am: 0c4d693722 am: ba49fda63a  -s ours am: bb1809ace7 am: adfda28b42 am: 569d39f94a  -s ours am: 975bb62996 am: b51610971c
am: 047cfaf95a

* commit '047cfaf95aa5b2e4c18da78ce0f013c01aebe690':
  DO NOT MERGE SoundPool: add lock for findSample access from SoundPoolThread