The original fix eliminated duplicate wifi connectivity changes stemming from
location provder scan's for APs. These would generate two DISCONNECTED broadcasts every
two minutes and many apps mis-interpreted them.
The fix was to ignore notifications where the major state was the same as the previous one
for each network. Unfortunately the state of per-apn notifications on cellular is hacky
and so the wifi fix was breaking mms (mms when you're on cellular with a common default+mms apn does
not generate a disconnect notification (apn still connected) so subsequent connect notifications
get dropped as duplicates).
This change refines the previous change so that it only applies to wifi networks.
bug:2392061
Change-Id: I05d8a46a4b55f8d28df8af12e05284e5e68bfc02
drno: ryanpc
6e6dec2843