[CB14] Implement backspace in the combiner chain

Bug: 13622107
Bug: 13406701
Change-Id: I0023b398c4451253f9f717e2bd990b8a054004bc
6 files changed
tree: eb9bbdd03698b38dc816cbac6f3a327d0fcff95a
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk