Add helper methods to set/query the location master switch. Consolidates the logic of exactly what the master switch means so that if we change in the future, we don't have to find all the different parts of the code that use it (location settings, location quick settings, power widget, etc).
Add helper methods to set/query the location master switch.
Consolidates the logic of exactly what the master switch means
so that if we change in the future, we don't have to find
all the different parts of the code that use it (location
settings, location quick settings, power widget, etc).

Change-Id: Ib918143b82e16541f0873c4d9141adb11fb815fc

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