1. Remove reference to LOCATION_MODE_PREVIOUS. 2. Add setLocationEnabled method in LocationEnabler. When turning location ON/OFF from Settings app or Quick Settings, use LocationEnabler.setLocationEnabled() instead of setLocationMode(). 3. Change unit tests accordingly. Bug: 70990911 Test: Robolectric Test: Manual Change-Id: Ic02ef3cd02f9aa7d2ef18697b19b507575aaf5c2