Merge changes I98459c4a,I6ebb2df2,I7d01b25c,I87319101,I5c29f880, ...

* changes:
  Store displayIdToShowIme in an IMMS field
  Remove unused suggestion span cache
  Remove unused method isImeVisible
  Extract and move unbinding visibly to controller
  Extract and move binding visibly to controller
  Move TIME_TO_RECONNECT to binding controller
  Move clear current method caller into controller