browser: accessibility: fix no click, close dropdown combobox

Change-Id: I5a459164174ac4ba4cab42822772e3fb4a3dd711
Signed-off-by: Henry Castro <[email protected]>

Author: hcvcastro

browser/src/control/jsdialog/Widget.Combobox.js

@@ -320,5 +320,13 @@ JSDialog.combobox = function (parentContainer, data, builder) {
 		content.value = text;
 	};
 
+	builder.map.on('jsdialog', function (e) {
+		if (e.data.jsontype === 'dialog'
+		    && e.data.action === 'close'
+		    && e.data.id === container.id + '-dropdown') {
+			container.setAttribute('aria-expanded', false);
+		}
+	});
+
 	return false;
 };