Index: modules/dashboard/dashboard.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/dashboard/dashboard.module,v
retrieving revision 1.24
diff -u -p -r1.24 dashboard.module
--- modules/dashboard/dashboard.module	28 Mar 2010 11:29:27 -0000	1.24
+++ modules/dashboard/dashboard.module	2 Apr 2010 04:10:42 -0000
@@ -174,9 +174,10 @@ function dashboard_permission() {
 function dashboard_system_info_alter(&$info, $file, $type) {
   if ($type == 'theme') {
     $info['regions'] += dashboard_region_descriptions();
-    if (module_exists('overlay')) {
-      $info['overlay_regions'] = !empty($info['overlay_regions']) ? array_merge($info['overlay_regions'], dashboard_regions()) : dashboard_regions();
-    }
+    // Indicate that these regions are intended to be displayed whenever the
+    // dashboard is displayed in an overlay. This information is provided for
+    // any module that might need to use it, not just the core Overlay module.
+    $info['overlay_regions'] = !empty($info['overlay_regions']) ? array_merge($info['overlay_regions'], dashboard_regions()) : dashboard_regions();
   }
 }
 
Index: modules/toolbar/toolbar.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/toolbar/toolbar.module,v
retrieving revision 1.35
diff -u -p -r1.35 toolbar.module
--- modules/toolbar/toolbar.module	10 Mar 2010 14:46:23 -0000	1.35
+++ modules/toolbar/toolbar.module	2 Apr 2010 04:10:42 -0000
@@ -153,12 +153,15 @@ function toolbar_preprocess_html(&$vars)
 /**
  * Implements hook_system_info_alter().
  *
- * If the overlay module is enabled, indicate that the 'page_top' region (in
- * which the toolbar will be displayed) is one of the overlay supplemental
- * regions that should be refreshed whenever its content is updated.
+ * Indicate that the 'page_top' region (in which the toolbar will be displayed)
+ * is an overlay supplemental region that should be refreshed whenever its
+ * content is updated.
+ *
+ * This information is provided for any module that might need to use it, not
+ * just the core Overlay module.
  */
 function toolbar_system_info_alter(&$info, $file, $type) {
-  if (module_exists('overlay') && $type == 'theme') {
+  if ($type == 'theme') {
     $info['overlay_supplemental_regions'][] = 'page_top';
   }
 }