Jerome Poichet c1fb6dc1a4 Make sure cancel is called on tear down.
- Make sure cancel is called when consumer of SpeechRecognizer calls
  destroy.
- If consumer goes away, make sure to call cancel as well.

b/17584947 Pressing mic button in Music hoses audio

Change-Id: Ibe1198b37fe6167493a8694f9089d970f1eb07de
2014-09-30 17:56:27 -07:00
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