Introduce KeyboardSet to hold related KeyboardIds

This change moves
  * KeyboardSwitcher.getKeyboardId to KeyboardSet.<init> and
    KeyboardSet.getKeyboardId.
  * KeyboardSwitcher.getF2KeyMode to KeyboardSet.
This is the first step to get rid of shift state from Keyboard.

Bug: 5002108
Bug: 5679585
Change-Id: I2a5a97e5e89277bc606916d45c1afbc8d105d773
2 files changed
tree: e5b35e72465a3d4889d6095a85d82a3bb028a7da
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk