Fixing accessibility bug with extensions preferences

chrome/browser/ui/webui/extensions/extension_settings_browsertest.js

Index: chrome/browser/ui/webui/extensions/extension_settings_browsertest.js
diff --git a/chrome/browser/ui/webui/extensions/extension_settings_browsertest.js b/chrome/browser/ui/webui/extensions/extension_settings_browsertest.js
index 1aca91b8c5da4bd2ea5e2c856167b8d1cc81060e..3bf00fe3c22928c7a9dd6f2cc17e8a29af5bda0b 100644
--- a/chrome/browser/ui/webui/extensions/extension_settings_browsertest.js
+++ b/chrome/browser/ui/webui/extensions/extension_settings_browsertest.js
@@ -406,6 +406,8 @@ TEST_F('SettingsCommandsExtensionSettingsWebUITest', 'testChromeSendHandler',
   // Just navigating to the page should trigger the chrome.send().
   var assertOverlayVisible = function() {
     assertTrue($('extension-commands-overlay').classList.contains('showing'));
+    assertEquals($('extension-commands-overlay').getAttribute('aria-hidden'),
+                 'false');
     this.nextStep();
   };
 
@@ -417,6 +419,8 @@ TEST_F('SettingsCommandsExtensionSettingsWebUITest', 'extensionSettingsUri',
     function() {
   var closeCommandOverlay = function() {
     assertTrue($('extension-commands-overlay').classList.contains('showing'));
+    assertEquals($('extension-commands-overlay').getAttribute('aria-hidden'),
+                 'false');
     assertEquals(window.location.href,
                  'chrome://extensions-frame/configureCommands');
 
@@ -424,6 +428,8 @@ TEST_F('SettingsCommandsExtensionSettingsWebUITest', 'extensionSettingsUri',
     $('extension-commands-dismiss').click();
 
     assertFalse($('extension-commands-overlay').classList.contains('showing'));
+    assertEquals($('extension-commands-overlay').getAttribute('aria-hidden'),
+                 'true');
     this.nextStep();
   };