DevTools: remove dead code, disambiguate expand for sections.

third_party/WebKit/Source/devtools/front_end/accessibility/AccessibilitySidebarView.js

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @extends {WebInspector.ThrottledWidget}
  */
 WebInspector.AccessibilitySidebarView = function()
 {
@@ skipping 39 matching lines @@
      * @override
      */
     wasShown: function()
     {
         WebInspector.ThrottledWidget.prototype.wasShown.call(this);
 
         if (!this._sidebarPaneStack) {
             this._axNodeSubPane = new WebInspector.AXNodeSubPane();
             this._axNodeSubPane.setNode(this.node());
             this._axNodeSubPane.show(this.element);
-            this._axNodeSubPane.expand();
+            this._axNodeSubPane.expandPane();
 
             this._sidebarPaneStack = new WebInspector.SidebarPaneStack();
             this._sidebarPaneStack.element.classList.add("flex-auto");
             this._sidebarPaneStack.show(this.element);
             this._sidebarPaneStack.addPane(this._axNodeSubPane);
         }
 
         WebInspector.targetManager.addModelListener(WebInspector.DOMModel, WebInspector.DOMModel.Events.AttrModified, this._onAttrChange, this);
         WebInspector.targetManager.addModelListener(WebInspector.DOMModel, WebInspector.DOMModel.Events.AttrRemoved, this._onAttrChange, this);
         WebInspector.targetManager.addModelListener(WebInspector.DOMModel, WebInspector.DOMModel.Events.CharacterDataModified, this._onNodeChange, this);
@@ skipping 109 matching lines @@
         treeOutline.registerRequiredCSS("accessibility/accessibilityNode.css");
         treeOutline.registerRequiredCSS("components/objectValue.css");
 
         treeOutline.element.classList.add("hidden");
         this.element.appendChild(treeOutline.element);
         return treeOutline;
     },
 
     __proto__: WebInspector.SidebarPane.prototype
 }