[automerger skipped] Adds validation for the TTS model. am: 813cc4f89c am: 4a96a34685
am: d2e7ab62fd  -s ours

Change-Id: I7467cb77a16a0c6b8e3581b0925cfa0c058c35ce
tree: 3d0261a4db30157a09bb139841a640529827abe8
  1. assets/
  2. LICENSE
  3. OWNERS
  4. README.txt