[WifiSetup] Update connection state for auto-finish

In Wi-Fi setup, when the connection state changed, query
ConnectivityManager for the latest Wi-Fi connection state instead of
relying the NetworkInfo attached in the intent, because the first
network info upon changing AP still shows the network as connected.

Bug: 17511772
Change-Id: I9c7765086dc8fbc5e1c2a37124ca89db3eab04a3

src/com/android/settings/wifi/WifiSetupActivity.java

@@ -87,9 +87,10 @@ public class WifiSetupActivity extends WifiPickerActivity
     private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
-            NetworkInfo info = (NetworkInfo) intent.getParcelableExtra(
+            // Refresh the connection state with the latest connection info. Use the connection info
-                    WifiManager.EXTRA_NETWORK_INFO);
+            // from ConnectivityManager instead of the one attached in the intent to make sure
-            refreshConnectionState(info.isConnected());
+            // we have the most up-to-date connection state. b/17511772
+            refreshConnectionState();
         }
     };