Implement a module system for the extension bindings JS.

chrome/renderer/resources/extensions/json_schema.js

 // Copyright (c) 2012 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.
 
 // -----------------------------------------------------------------------------
 // NOTE: If you change this file you need to touch renderer_resources.grd to
 // have your change take effect.
 // -----------------------------------------------------------------------------
 
 //==============================================================================
@@ skipping 21 matching lines @@
 // - function and undefined types are supported
 // - null counts as 'unspecified' for optional values
 // - added the 'choices' property, to allow specifying a list of possible types
 //   for a value
 // - by default an "object" typed schema does not allow additional properties.
 //   if present, "additionalProperties" is to be a schema against which all
 //   additional properties will be validated.
 //==============================================================================
 
 (function() {
-native function GetChromeHidden();
-var chromeHidden = GetChromeHidden();
+var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
 
 /**
  * Validates an instance against a schema and accumulates errors. Usage:
  *
  * var validator = new chromeHidden.JSONSchemaValidator();
  * validator.validate(inst, schema);
  * if (validator.errors.length == 0)
  *   console.log("Valid!");
  * else
  *   console.log(validator.errors);
@@ skipping 390 matching lines @@
  */
 chromeHidden.JSONSchemaValidator.prototype.addError = function(
     path, key, replacements) {
   this.errors.push({
     path: path,
     message: chromeHidden.JSONSchemaValidator.formatError(key, replacements)
   });
 };
 
 })();