DevTools: Remove unused isAncestor parameter from findTreeElement in TreeOutline.

Source/devtools/front_end/resources/ResourcesPanel.js

 /*
  * Copyright (C) 2007, 2008, 2010 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  * Copyright (C) 2013 Samsung Electronics. All rights reserved.
  *
  * 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
@@ skipping 706 matching lines @@
     _applicationCacheNetworkStateChanged: function(event)
     {
         var isNowOnline = event.data;
 
         for (var manifestURL in this._applicationCacheViews)
             this._applicationCacheViews[manifestURL].updateNetworkState(isNowOnline);
     },
 
     _findTreeElementForResource: function(resource)
     {
-        function isAncestor(ancestor, object)
-        {
-            // Redirects, XHRs do not belong to the tree, it is fine to silently return false here.
-            return false;
-        }
-
         function getParent(object)
         {
             // Redirects, XHRs do not belong to the tree, it is fine to silently return false here.
             return null;
         }
 
-        return this.sidebarTree.findTreeElement(resource, isAncestor, getParent);
+        return this.sidebarTree.findTreeElement(resource, getParent);
     },
 
     showView: function(view)
     {
         if (view)
             this.showResource(view.resource);
     },
 
     _onmousemove: function(event)
     {
@@ skipping 1374 matching lines @@
 }
 
 WebInspector.StorageCategoryView.prototype = {
     setText: function(text)
     {
         this._emptyView.text = text;
     },
 
     __proto__: WebInspector.VBox.prototype
 }