Show ancestor hierarchy in accessibility panel

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

 // Copyright (c) 2014 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.SDKModel}
  * @param {!WebInspector.Target} target
  */
 WebInspector.AccessibilityModel = function(target)
 {
     WebInspector.SDKModel.call(this, WebInspector.AccessibilityModel, target);
     this._agent = target.accessibilityAgent();
 };
 
 WebInspector.AccessibilityModel.prototype = {
     /**
      * @param {!DOMAgent.NodeId} nodeId
-     * @return {!Promise.<?AccessibilityAgent.AXNode>}
+     * @return {!Promise.<?Array<!AccessibilityAgent.AXNode>>}
      */
-    getAXNode: function(nodeId)
+    getAXNodeChain: function(nodeId)
     {
         /**
          * @param {?string} error
-         * @param {!AccessibilityAgent.AXNode=} value
+         * @param {!Array<!AccessibilityAgent.AXNode>=} nodes
+         * @return {?Array<!AccessibilityAgent.AXNode>}
          */
-        function parsePayload(error, value)
+        function parsePayload(error, nodes)
         {
             if (error)
-                console.error("AccessibilityAgent.getAXNode(): " + error);
-            return value || null;
+                console.error("AccessibilityAgent.getAXNodeChain(): " + error);
+            return nodes || null;
         }
-        return this._agent.getAXNode(nodeId, parsePayload);
+        return this._agent.getAXNodeChain(nodeId, true, parsePayload);
     },
 
     __proto__: WebInspector.SDKModel.prototype
 }
 
 WebInspector.AccessibilityModel._symbol = Symbol("AccessibilityModel");
 /**
  * @param {!WebInspector.Target} target
  * @return {!WebInspector.AccessibilityModel}
  */
 WebInspector.AccessibilityModel.fromTarget = function(target)
 {
     if (!target[WebInspector.AccessibilityModel._symbol])
         target[WebInspector.AccessibilityModel._symbol] = new WebInspector.AccessibilityModel(target);
 
     return target[WebInspector.AccessibilityModel._symbol];
 }