Initial redesign of the Files.app's main window.

chrome/browser/resources/file_manager/js/background.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';
 
 /**
  * Map of all currently open app window. The key is an app id.
  */
 var appWindows = {};
@@ skipping 239 matching lines @@
 
 /**
  * @param {Object=} opt_appState App state.
  * @param {number=} opt_id Window id.
  */
 function launchFileManager(opt_appState, opt_id) {
   var id = opt_id || nextFileManagerWindowID;
   nextFileManagerWindowID = Math.max(nextFileManagerWindowID, id + 1);
 
   var appWindow = new AppWindowWrapper(
-        'main.html', FILES_ID_PREFIX + id, createFileManagerOptions);
+      util.platform.newUI() ? 'main_new_ui.html' : 'main.html',
+      FILES_ID_PREFIX + id,
+      createFileManagerOptions);
   appWindow.launch(opt_appState || {});
 }
 
 /**
  * Relaunch file manager windows based on the persisted state.
  */
 function reopenFileManagers() {
   chrome.storage.local.get(function(items) {
     for (var key in items) {
       if (items.hasOwnProperty(key)) {
@@ skipping 123 matching lines @@
 }
 
 chrome.app.runtime.onLaunched.addListener(launch);
 chrome.app.runtime.onRestarted.addListener(restart);
 
 function addExecuteHandler() {
   chrome.fileBrowserHandler.onExecute.addListener(executeFileBrowserTask);
 }
 
 addExecuteHandler();