am afdb6f01: Merge "Add user history dictionary decaying test."

* commit 'afdb6f011ba89cb967fbf3b9e4f4d0411b648361':
  Add user history dictionary decaying test.
tree: a10318a867d166b86d9910cd2b88a625d8f9fb53
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk