Update the IME with selection and composing region changes.
Update the IME with selection and composing region changes.

 Bug 6507332
 The IME must be informed whenever the selection or composing
 region changes so that it can adjust its replacement regions
 and suggestions.

Change-Id: I484b112a2fede6528b0bc506711284b59bd886d1

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base