Add widget to nav area

I am trying to add a widget area to my nav bar so I can use shortcode to put my social media icons there. Would this be the correct code to place in the header.php file?

// Add a widget.
if (function_exists('register_sidebar')) {
	register_sidebar(array(
	'name' => 'Extra Widget Before Header',
	'id' => 'extra-widget',
	'description' => 'Extra Widget Before Header',
	'before_widget' => '<div id="%1$s" class="widget %2$s">',
	'after_widget' => '</div>',
	'before_title' => '<h2>',
	'after_title' => '</h2>'
	));
}
// Place the widget before the header
add_filter ('__after_navbar', 'add_my_widget');
	function add_my_widget() {
		if (function_exists('dynamic_sidebar')) {
		dynamic_sidebar('Extra Widget Before Header');
		}
	}

Thanks