Make the WiFi switch appear again

- use the ActionBar Theme context when creating the Switch for
getting the correct Theming

Change-Id: I1c44e1b1c28bf02af4c2ac9912295106d93a60e8

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

@@ -415,7 +415,7 @@ public class WifiSettings extends RestrictedSettingsFragment
         if (!mSetupWizardMode) {
             final Activity activity = getActivity();
 
-            mSwitch = new Switch(activity);
+            mSwitch = new Switch(activity.getActionBar().getThemedContext());
             boolean addSwitch = true;
 
             if (activity instanceof WifiPickerActivity) {