Update json_schema_compiler to handle the Automation extension API

chrome/browser/resources/chromeos/chromevox/cvox2/background/automation_util.js

 // Copyright 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.
 
 /**
  * @fileoverview ChromeVox utilities for the automation extension API.
  */
 
 goog.provide('AutomationUtil');
 
@@ skipping 219 matching lines @@
  * @param {AutomationNode} a
  * @param {AutomationNode} b
  * @return {boolean}
  */
 AutomationUtil.isInSameTree = function(a, b) {
   if (!a || !b)
     return true;
 
   // Given two non-desktop roots, consider them in the "same" tree.
   return a.root === b.root ||
-      (a.root.role == b.root.role && a.root.role == RoleType.rootWebArea);
+      (a.root.role == b.root.role && a.root.role == RoleType.ROOT_WEB_AREA);
 };
 
 /**
  * Determines whether or not a node is or is the descendant of another node.
  * @param {!AutomationNode} node
  * @param {!AutomationNode} ancestor
  * @return {boolean}
  */
 AutomationUtil.isDescendantOf = function(node, ancestor) {
   var testNode = node;
@@ skipping 27 matching lines @@
   return null;
 };
 
 /**
  * Gets a top level root.
  * @param {!AutomationNode} node
  * @return {AutomationNode}
  */
 AutomationUtil.getTopLevelRoot = function(node) {
   var root = node.root;
-  if (!root || root.role == RoleType.desktop)
+  if (!root || root.role == RoleType.DESKTOP)
     return null;
 
   while (root &&
       root.parent &&
       root.parent.root &&
-      root.parent.root.role != RoleType.desktop) {
+      root.parent.root.role != RoleType.DESKTOP) {
     root = root.parent.root;
   }
   return root;
 };
 
 /**
  * @param {!AutomationNode} prevNode
  * @param {!AutomationNode} node
  * @return {AutomationNode}
  */
@@ skipping 10 matching lines @@
 /**
  * Gets the accessible text for this node based on its role.
  * This text is suitable for caret navigation and selection in the node.
  * @param {AutomationNode} node
  * @return {string}
  */
 AutomationUtil.getText = function(node) {
   if (!node)
     return '';
 
-  if (node.role === RoleType.textField)
-    return node.value;
+  if (node.role === RoleType.TEXT_FIELD)
+    return node.value || '';
   return node.name || '';
 };
 
 });  // goog.scope