Add upstream

wp-content/plugins/jetpack/modules/theme-tools/site-logo/js/site-logo-header-text.js

@@ -0,0 +1,24 @@
+/* global site_logo_header_classes */
+/**
+ * JS for handling the "Display Header Text" setting's realtime preview.
+ */
+( function( $ ) {
+	var api = wp.customize,
+		$classes = site_logo_header_classes;
+
+	api( 'site_logo_header_text', function( value ) {
+		value.bind( function( to ) {
+			if ( true === to ) {
+				$( $classes ).css( {
+					position: 'static',
+					clip: 'auto',
+				} );
+			} else {
+				$( $classes ).css( {
+					position: 'absolute',
+					clip: 'rect(1px 1px 1px 1px)',
+				} );
+			}
+		} );
+	} );
+} )( jQuery );