Move some wifi tracking code to SettingsLib

Move tracking of which networks are available/saved and their state
over to SettingsLib to share it with Quick Settings.

Bug: 19180466
Change-Id: Iaeef06b26da8cb38e1ba09a7d105d04d499dc181

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

@@ -17,6 +17,7 @@
 package com.android.settings.wifi;
 
 import com.android.settings.R;
+import com.android.settingslib.wifi.AccessPoint;
 
 import android.net.wifi.ScanResult;
 import java.net.HttpURLConnection;
@@ -297,7 +298,8 @@ public class WifiStatusTest extends Activity {
     private void handleNetworkStateChanged(NetworkInfo networkInfo) {
         if (mWifiManager.isWifiEnabled()) {
             WifiInfo info = mWifiManager.getConnectionInfo();
-            String summary = Summary.get(this, info.getSSID(), networkInfo.getDetailedState(),
+            String summary = AccessPoint.getSummary(this, info.getSSID(),
+                    networkInfo.getDetailedState(),
                     info.getNetworkId() == WifiConfiguration.INVALID_NETWORK_ID);
             mNetworkState.setText(summary);
         }