Merge "Add documents for the required permission"

     * {@link ContentObserver#onChange(boolean, Collection, int, UserHandle)} should be

     * overwritten to get the corresponding {@link UserHandle} for that notification.

     *

     * <p> If you don't hold the {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL}

     * permission, you can register the {@link ContentObserver} only for current user.

     *

     * @param uri                  The URI to watch for changes. This can be a specific row URI,

     *                             or a base URI for a whole class of content.

     * @param notifyForDescendants When false, the observer will be notified