am 89b7f7ff: (-s ours) am 0bbf868d: Merge "DO NOT MERGE: Minimal fix for takePicture/previewCallback deadlock" into jb-dev

* commit '89b7f7ff8e198916d79b0f59184bc5dd444a4dd4':
  DO NOT MERGE: Minimal fix for takePicture/previewCallback deadlock