DevTools: bring back existing panel selection rendering (border image)

Source/devtools/front_end/components/InspectorView.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 31 matching lines @@
     // DevTools sidebar is a vertical split of panels tabbed pane and a drawer.
     this._drawerSplitWidget = new WebInspector.SplitWidget(false, true, "Inspector.drawerSplitViewState", 200, 200);
     this._drawerSplitWidget.hideSidebar();
     this._drawerSplitWidget.enableShowModeSaving();
     this._drawerSplitWidget.show(this.element);
 
     this._tabbedPane = new WebInspector.TabbedPane();
     this._tabbedPane.registerRequiredCSS("components/inspectorViewTabbedPane.css");
     this._tabbedPane.element.classList.add("inspector-view-tabbed-pane");
     this._tabbedPane.setRetainTabOrder(true);
-    this._tabbedPane.setTabSlider(true);
     this._drawerSplitWidget.setMainWidget(this._tabbedPane);
     this._drawer = new WebInspector.Drawer(this._drawerSplitWidget);
 
     this._panels = {};
     // Used by tests.
     WebInspector["panels"] = this._panels;
 
     this._history = [];
     this._historyIterator = -1;
     this._keyDownBound = this._keyDown.bind(this);
@@ skipping 474 matching lines @@
 WebInspector.InspectorView.ToggleDrawerButtonProvider.prototype = {
     /**
      * @override
      * @return {?WebInspector.ToolbarItem}
      */
     item: function()
     {
         return WebInspector.inspectorView._drawer.toggleButton();
     }
 }