Created "guest_view/" directory to contain all the guestview files (like web_view* and app_view*) i…

extensions/renderer/resources/app_view_deny.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.
-
-var DocumentNatives = requireNative('document_natives');
-
-// Output error message to console when using the <webview> tag with no
-// permission.
-var errorMessage = "You do not have permission to use the appview element." +
-  " Be sure to declare the 'appview' permission in your manifest file and use" +
-  " the --enable-app-view command line flag.";
-
-// Registers <webview> custom element.
-function registerAppViewElement() {
-  var proto = Object.create(HTMLElement.prototype);
-
-  proto.createdCallback = function() {
-    window.console.error(errorMessage);
-  };
-
-  window.AppView =
-      DocumentNatives.RegisterElement('appview', {prototype: proto});
-
-  // Delete the callbacks so developers cannot call them and produce unexpected
-  // behavior.
-  delete proto.createdCallback;
-  delete proto.attachedCallback;
-  delete proto.detachedCallback;
-  delete proto.attributeChangedCallback;
-}
-
-var useCapture = true;
-window.addEventListener('readystatechange', function listener(event) {
-  if (document.readyState == 'loading')
-    return;
-
-  registerAppViewElement();
-  window.removeEventListener(event.type, listener, useCapture);
-}, useCapture);