Fix some lingering WebUI focus issues.

ui/webui/resources/js/cr/ui/overlay.js

Index: ui/webui/resources/js/cr/ui/overlay.js
diff --git a/ui/webui/resources/js/cr/ui/overlay.js b/ui/webui/resources/js/cr/ui/overlay.js
index 892df027f375e09ccdabc292bb974436868fe4c2..84a6ddebba63358585f815e1d22a716b44b43758 100644
--- a/ui/webui/resources/js/cr/ui/overlay.js
+++ b/ui/webui/resources/js/cr/ui/overlay.js
@@ -97,6 +97,8 @@ cr.define('cr.ui.overlay', function() {
     var closeButtons = overlay.querySelectorAll('.page > .close-button');
     for (var i = 0; i < closeButtons.length; i++) {
       closeButtons[i].addEventListener('click', function(e) {
+        // Dispatch this so FocusOutlineManager updates.
+        cr.dispatchSimpleEvent(e.currentTarget, 'focus', true);

[Dan Beam, 2015/06/04 03:30:29]

FocusOutlineManager is not guaranteed to exist in all cases when this is run
(otherwise I'd probably do cr.ui.FocusManager.forDocument(document).update() or
something) and it'd be kind of a bummer to add an <include> just for this.

         cr.dispatchSimpleEvent(overlay, 'cancelOverlay');
       });
     }