Save/restore the picture in a background thread.
Save/restore the picture in a background thread.

Bug: 2573879
Change-Id: I0962f5286d3a68f8a9093f0c22917b0542ea9291

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