DevTools: allow focus to be restored to the drawer when dialog closes

third_party/WebKit/Source/devtools/front_end/ui/Drawer.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 114 matching lines @@
      */
     _tabSelected: function(event)
     {
         this._firstTabSelected = true;
         var tabId = this._tabbedPane.selectedTabId;
         if (tabId && event.data["isUserGesture"])
             this._lastSelectedViewSetting.set(tabId);
     },
 
     /**
+     * @override
+     * @return {!Element}
+     */
+    defaultFocusedElement: function()
+    {
+        return this._tabbedPane.defaultFocusedElement();
+    },
+
+    /**
      * @return {?string}
      */
     selectedViewId: function()
     {
         return this._tabbedPane.selectedTabId;
     },
 
     initialPanelShown: function()
     {
         this._initialPanelWasShown = true;
     },
 
     __proto__: WebInspector.VBox.prototype
 }