Streamline some user history dictionary code

A lot of things don't really make sense in the old code.
Let's streamline it for now so that we have a cleaner interface
to work with. This is preliminary work for bug 4192129.

Change-Id: If01a5974cfadc43afced610c57fcf7fde67c1346
3 files changed
tree: d1ba3b900ce03edf806db3faa0c355921fdc06a8
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk