Refactor User Profile editor dialog for reuse

Move the dialog code into a separate class.
Use it from RestrictedProfileSettings
and UserSettings for the current user.

Bug: 15761405
Change-Id: I0b9a95ba8463304525e6a4b8cf3b4ca77b15796f

src/com/android/settings/users/AppRestrictionsFragment.java

@@ -345,7 +345,7 @@ public class AppRestrictionsFragment extends SettingsPreferenceFragment implemen
         return getPreferenceScreen();
     }
 
-    protected Drawable getCircularUserIcon() {
+    Drawable getCircularUserIcon() {
         Bitmap userIcon = mUserManager.getUserIcon(mUser.getIdentifier());
         if (userIcon == null) {
             return null;