[Files.app] Split the JavaScript files into subdirectories: common, background, and foreground

chrome/browser/resources/file_manager/js/main.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.
-
-'use strict';
-
-/**
- * @type {FileManager}
- */
-var fileManager;
-
-/**
- * Indicates if the DOM and scripts have been already loaded.
- * @type {boolean}
- */
-var pageLoaded = false;
-
-/**
- * Kick off the file manager dialog.
- * Called by main.html after the DOM has been parsed.
- */
-function init() {
-  // Initializes UI and starts the File Manager dialog.
-  fileManager.initializeUI(document.body, function() {
-    chrome.test.sendMessage('ready');
-    metrics.recordInterval('Load.Total');
-  });
-}
-
-// Create the File Manager object. Note, that the DOM, nor any external
-// scripts may not be ready yet.
-fileManager = new FileManager();
-
-// Initialize the core stuff, which doesn't require access to DOM nor to
-// additional scripts.
-fileManager.initializeCore();
-
-// Final initialization is performed after all scripts and Dom is loaded.
-util.addPageLoadHandler(init);
-
-metrics.recordInterval('Load.Script');  // Must be the last line.