Moved the javascript files for each respective guest_view type into subdirectories of guest_view/ .

extensions/renderer/resources/guest_view/app_view.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');
-var GuestView = require('guestView').GuestView;
-var GuestViewContainer = require('guestViewContainer').GuestViewContainer;
-var IdGenerator = requireNative('id_generator');
-
-function AppViewImpl(appviewElement) {
-  GuestViewContainer.call(this, appviewElement, 'appview');
-
-  this.app = '';
-  this.data = '';
-}
-
-AppViewImpl.prototype.__proto__ = GuestViewContainer.prototype;
-
-AppViewImpl.VIEW_TYPE = 'AppView';
-
-// Add extra functionality to |this.element|.
-AppViewImpl.setupElement = function(proto) {
-  var apiMethods = [
-    'connect'
-  ];
-
-  // Forward proto.foo* method calls to AppViewImpl.foo*.
-  GuestViewContainer.forwardApiMethods(proto, apiMethods);
-}
-
-AppViewImpl.prototype.getErrorNode = function() {
-  if (!this.errorNode) {
-    this.errorNode = document.createElement('div');
-    this.errorNode.innerText = 'Unable to connect to app.';
-    this.errorNode.style.position = 'absolute';
-    this.errorNode.style.left = '0px';
-    this.errorNode.style.top = '0px';
-    this.errorNode.style.width = '100%';
-    this.errorNode.style.height = '100%';
-    this.element.shadowRoot.appendChild(this.errorNode);
-  }
-  return this.errorNode;
-};
-
-AppViewImpl.prototype.buildContainerParams = function() {
-  return {
-    'appId': this.app,
-    'data': this.data || {}
-  };
-};
-
-AppViewImpl.prototype.connect = function(app, data, callback) {
-  if (!this.elementAttached) {
-    if (callback) {
-      callback(false);
-    }
-    return;
-  }
-
-  this.app = app;
-  this.data = data;
-
-  this.guest.destroy();
-  this.guest.create(this.buildParams(), function() {
-    if (!this.guest.getId()) {
-      var errorMsg = 'Unable to connect to app "' + app + '".';
-      window.console.warn(errorMsg);
-      this.getErrorNode().innerText = errorMsg;
-      if (callback) {
-        callback(false);
-      }
-      return;
-    }
-    this.attachWindow();
-    if (callback) {
-      callback(true);
-    }
-  }.bind(this));
-};
-
-GuestViewContainer.registerElement(AppViewImpl);