Release resources for a previously loaded cursor if a new one comes in.
Release resources for a previously loaded cursor if a new one
comes in.

Change-Id: I43b8788869d5bfdd06096de6cb23acdf26a1c19a

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