Removed backloader component extension.

chrome/browser/resources/backloader/web/cros_validator.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.
-
-function ChromeOSValidator() {
-}
-
-ChromeOSValidator.getInstance = function() {
-  if (!ChromeOSValidator.instance_) {
-    ChromeOSValidator.instance_ = new ChromeOSValidator();
-  }
-  return ChromeOSValidator.instance_;
-};
-
-ChromeOSValidator.prototype = {
-  LOADER_ORIGIN: 'chrome-extension://nbicjcbcmclhihdkigkjgkgafckdfcom',
-  LOADER_PAGE: '/background.html',
-  callback_: undefined,
-
-  validate: function(callback) {
-    this.callback_ = callback;
-    var msg = { method: 'validate' };
-    window.parent.postMessage(msg,
-        this.LOADER_ORIGIN + this.LOADER_PAGE);
-  },
-
-  initialize: function() {
-    window.addEventListener('message', this.onMessage.bind(this), false);
-  },
-
-  isValidMessage_: function(msg) {
-    return msg.origin == this.LOADER_ORIGIN;
-  },
-
-  onMessage: function(e) {
-    var msg = e.data;
-    if (msg.method == 'validationResults' && this.isValidMessage_(e)) {
-      if (this.callback_)
-        this.callback_(msg.os == 'ChromeOS');
-    } else {
-      console.log('#### ChromeOSValidator.onMessage: unknown message');
-      if (this.callback_)
-        this.callback_(false);
-    }
-  }
-};
-
-ChromeOSValidator.getInstance().initialize();