Fix crash when Looper used after quit.
Fix crash when Looper used after quit.

Calling Looper.loop() after quit() isn't supported but it shouldn't
crash either.

Bug: 8808624
Change-Id: I73ea54444ed908c2e8964645f4a8cd08b842baac

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