am 384bfa27: Merge change 2227 into donut

Merge commit '384bfa270cdcb5dc3bc9ec396b783e25eb2d9b4d'

* commit '384bfa270cdcb5dc3bc9ec396b783e25eb2d9b4d':
  Add header declaring the interface for TTS engines to implement.
tree: a212d8a8edca96c2c374775f3c48d679aa80b55f
  1. awt/
  2. camera/
  3. cmds/
  4. im/
  5. include/
  6. libs/
  7. opengl/
  8. MODULE_LICENSE_APACHE2
  9. NOTICE