Use "unknown emoji" or emoji that has an empty translation

Because the number of emoji description spoken string resources is
rather huge (~800), some locales may chose an empty description as a
translation. If that is the case, we will announce "unknown emoji" as
a fallback.

Bug: 11452158
Change-Id: Ibb65e5bec93030c40bd33ac2be2115c3bbc8bd11
2 files changed
tree: 980ad88b614790c31ddf650cf2efcd2833243dce
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk