make verbose logging a wifimanager hidden API

Change-Id: I092b7f507ad4dfdab16658929f02584a1fc22ba4

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

@@ -712,6 +712,8 @@ public class WifiSettings extends RestrictedSettingsFragment
         return super.onCreateDialog(dialogId);
     }
 
+    /** verbose logging flag is set only thru developer debugging options */
+    public static int mVerboseLogging = 0;
     /**
      * Shows the latest access points available with supplimental information like
      * the strength of network and the security for it.
@@ -726,6 +728,9 @@ public class WifiSettings extends RestrictedSettingsFragment
         }
         final int wifiState = mWifiManager.getWifiState();
 
+        //check if verbose logging has been turned on or off
+        mVerboseLogging = mWifiManager.getVerboseLoggingLevel();
+
         switch (wifiState) {
             case WifiManager.WIFI_STATE_ENABLED:
                 // AccessPoints are automatically sorted with TreeSet.