Ignore the result of the on share callback in ShareActionProvider.
Ignore the result of the on share callback in ShareActionProvider.

1. The reason for having this callback on the ShareActionProvider
   is to notify the client that a share happened so he can update
   the UI.

Change-Id: I65e8a8db8d4add0cd23d53be0286b14b4b4640b4

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