Debug: Add setPropertiesOn(), and @hide it for now
Debug: Add setPropertiesOn(), and @hide it for now

This lets a caller reflectively set the static fields of a class
based on debug build properties.

Signed-off-by: Dave Bort <5d60646f2fc125338db5820323ce80f912815276@android.com>

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