tree 8db86d5be8b75f6b92e723563fc1b0ffb3e0ffde
parent b1c5014e83c8dfa7000f8bd0249c4a757d3d2c5b
author Kumar Anand <kumaranand@google.com> 1612289041 -0800
committer Kumar Anand <kumaranand@google.com> 1612291167 -0800

Wifi: Reset country code during cellular loss

If Wifi receives a country code update from Telephony
(ACTION_NETWORK_COUNTRY_CHANGED), there is no reason to
poll the country again from Telephony in the same context
using the getNetworkCountryIso. Not only this is sub-optimal,
it also exposes a race condition where the getNetworkCountryIso
returns a different country code as getNetworkCountryIso uses
EmergencyNumberTracker as a source and may not have handled
ACTION_NETWORK_COUNTRY_CHANGED yet and updated country code.

Bug: 177633488
Test: atest com.android.server.wifi
Change-Id: Idc92967d8ee4ac4b60ba759c552ba62e184e9b6e