am 79a3981e: Fix Looper leaks in MediaRecorderStressTest.

Merge commit '79a3981e3885b9144bb3d458682141eed7365939' into gingerbread-plus-aosp

* commit '79a3981e3885b9144bb3d458682141eed7365939':
  Fix Looper leaks in MediaRecorderStressTest.