Handles' position are updated in case of external change.
Handles' position are updated in case of external change.

A 'Select All' for instance will alter the selection and the handles
have to updated accordingly.

Change-Id: I8ac91c858e7944a7b4ce1b37a3d90609a3003d22

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