update dox to account for different behavior between AVOID and TARGET modes
update dox to account for different behavior between AVOID and TARGET modes

http://b/issue?id=2034547

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