Update json_schema_compiler to handle the Automation extension API

chrome/test/data/extensions/api_test/automation/tests/tabs/location2.js

 // Copyright 2016 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.
 
 var allTests = [
   // This is a regression test for a particular layout where the
   // automation API was returning the wrong location for an element.
   // See ../../sites/location2.html for the layout.
   function testLocation2() {
-    var textbox = rootNode.find({ role: RoleType.textField });
+    var textbox = rootNode.find({ role: RoleType.TEXT_FIELD });
     assertEq(0, textbox.location.left - rootNode.location.left);
     assertEq(100, textbox.location.top - rootNode.location.top);
     chrome.test.succeed();
   }
 ];
 
 setUpAndRunTests(allTests, 'location2.html');