Fix NPE in KeyDetector

This is actually a follow up of I9290974821.

Bug: 13215075
Change-Id: Ib7eef55fd1cfbb05d06aeeb0726bc10c87b07d85
1 file changed
tree: e8d1c15af0e06c38053804f02d67cf4077f4aff9
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk