am 4a60d618: Fix NPE in TextToSpeech with setLanguage(null)

Merge commit '4a60d61887a20d349e5eb38900dfbcaab06630fc' into gingerbread-plus-aosp

* commit '4a60d61887a20d349e5eb38900dfbcaab06630fc':
  Fix NPE in TextToSpeech with setLanguage(null)