- Patch #669796 by casey: remove unnecessary code.

modules/overlay/overlay-child.js

@@ -54,14 +54,6 @@ Drupal.behaviors.overlayChild = {
     // Ok, now we can tell the parent window we're ready.
     parent.Drupal.overlay.bindChild(window);
 
-    // Install onBeforeUnload callback, if module is present.
-    if ($.isObject(Drupal.onBeforeUnload) && !Drupal.onBeforeUnload.callbackExists('overlayChild')) {
-      Drupal.onBeforeUnload.addCallback('overlayChild', function () {
-        // Tell the parent window we're unloading.
-        parent.Drupal.overlay.unbindChild(window);
-      });
-    }
-
     // Attach child related behaviors to the iframe document.
     self.attachBehaviors(context, settings);
   }

modules/overlay/overlay-parent.js

@@ -530,26 +530,6 @@ Drupal.overlay.bindChild = function (iframeWindow, isClosing) {
   }
 };
 
-/**
- * Unbind the child window.
- *
- * Remove keyboard event handlers, reset title and hide the iframe.
- */
-Drupal.overlay.unbindChild = function (iframeWindow) {
-  var self = this;
-  var $iframeDocument = iframeWindow.jQuery(iframeWindow.document);
-
-  // Prevent memory leaks by explicitly unbinding keyboard event handler
-  // on the child document.
-  $iframeDocument.unbind('keydown.overlay-event');
-
-  // Change the overlay title.
-  self.$container.dialog('option', 'title', Drupal.t('Please wait...'));
-
-  // Hide the iframe element.
-  self.$iframe.fadeOut('fast');
-};
-
 /**
  * Check if the given link is in the administrative section of the site.
  *