Add beginning of sentence information in PrevWordsInfo.

Bug: 14119293
Bug: 14425059
Change-Id: I65320920e840082b0b697bb621676716d0933e0c
6 files changed
tree: 7c6a20591d4e5bb84e708d89aa75a9f8c7c22e33
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk