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

extensions/renderer/resources/guest_view/web_view/web_view_experimental.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.
 
 // This module implements experimental API for <webview>.
 // See web_view.js and web_view_api_methods.js for details.
 //
 // <webview> Experimental API is only available on canary and dev channels of
 // Chrome.
 
 var WebViewImpl = require('webView').WebViewImpl;
 var WebViewInternal = require('webViewInternal').WebViewInternal;
 
 // An array of <webview>'s experimental API methods. See |WEB_VIEW_API_METHODS|
 // in web_view_api_methods.js for more details.
 var WEB_VIEW_EXPERIMENTAL_API_METHODS = [
 ];
 
 // Registers the experimantal WebVIew API when available.
 WebViewImpl.maybeGetExperimentalApiMethods = function() {
   return WEB_VIEW_EXPERIMENTAL_API_METHODS;
 };