[DevTools] Accessibility: Show siblings and children of selected node

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

Index: third_party/WebKit/Source/devtools/front_end/accessibility/AccessibilitySidebarView.js
diff --git a/third_party/WebKit/Source/devtools/front_end/accessibility/AccessibilitySidebarView.js b/third_party/WebKit/Source/devtools/front_end/accessibility/AccessibilitySidebarView.js
index 59f69b4810f4b7876707caa5d1ec23027f8742de..4e0077ba3cf00265b1af3f038ab68068d77d8710 100644
--- a/third_party/WebKit/Source/devtools/front_end/accessibility/AccessibilitySidebarView.js
+++ b/third_party/WebKit/Source/devtools/front_end/accessibility/AccessibilitySidebarView.js
@@ -10,6 +10,7 @@ WebInspector.AccessibilitySidebarView = function()
 {
     WebInspector.ThrottledWidget.call(this);
     this._node = null;
+    this._axNode = null;
     this._sidebarPaneStack = WebInspector.viewManager.createStackLocation();
     this._treeSubPane = new WebInspector.AXTreePane();
     this._sidebarPaneStack.showView(this._treeSubPane);
@@ -32,23 +33,24 @@ WebInspector.AccessibilitySidebarView.prototype = {
     },
 
     /**
-     * @param {?Array<!AccessibilityAgent.AXNode>} nodes
+     * @param {?WebInspector.AccessibilityNode} axNode
      */
-    accessibilityNodeCallback: function(nodes)
+    accessibilityNodeCallback: function(axNode)
     {
-        if (!nodes)
+        if (!axNode)
             return;
 
-        var currentAXNode = nodes[0];
-        if (currentAXNode.ignored)
+        this._axNode = axNode;
+
+        if (axNode.ignored())
             this._sidebarPaneStack.removeView(this._ariaSubPane);
         else
             this._sidebarPaneStack.showView(this._ariaSubPane, this._axNodeSubPane);
 
         if (this._axNodeSubPane)
-            this._axNodeSubPane.setAXNode(currentAXNode);
+            this._axNodeSubPane.setAXNode(axNode);
         if (this._treeSubPane)
-            this._treeSubPane.setAXNodeAndAncestors(nodes);
+            this._treeSubPane.setAXNode(axNode);
     },
 
     /**
@@ -62,8 +64,13 @@ WebInspector.AccessibilitySidebarView.prototype = {
         this._treeSubPane.setNode(node);
         this._axNodeSubPane.setNode(node);
         this._ariaSubPane.setNode(node);
-        return WebInspector.AccessibilityModel.fromTarget(node.target()).getAXNodeChain(node.id)
-            .then((nodes) => { this.accessibilityNodeCallback(nodes); });
+        if (!node)
+            return Promise.resolve();
+        var accessibilityModel = WebInspector.AccessibilityModel.fromTarget(node.target());
+        return accessibilityModel.setDOMNode(node)
+            .then(accessibilityModel.resolveAllDOMNodes.bind(accessibilityModel))
+            .then(accessibilityModel.getInspectedAXNode.bind(accessibilityModel))
+            .then((axNode) => { this.accessibilityNodeCallback(axNode); });
     },
 
     /**
@@ -99,6 +106,7 @@ WebInspector.AccessibilitySidebarView.prototype = {
         this._node = WebInspector.context.flavor(WebInspector.DOMNode);
         this._ariaSubPane.setNode(this._node);
         this._axNodeSubPane.setNode(this._node);
+        this._treeSubPane.setNode(this._node);
         this.update();
     },
 
@@ -147,7 +155,7 @@ WebInspector.AccessibilitySubPane = function(name)
 
 WebInspector.AccessibilitySubPane.prototype = {
     /**
-     * @param {?AccessibilityAgent.AXNode} axNode
+     * @param {?WebInspector.AccessibilityNode} axNode
      * @protected
      */
     setAXNode: function(axNode)