Add functions to calculate proximity characters in the native code

Bug: 4343280

Change-Id: I17f8f6295b01900948b98680d0267753f33a46cf
4 files changed
tree: 43bcadd6f6940a28b41058853961810c1749d604
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk