Move common account picker/user pod js/css/html out of src/chrome

ui/login/resource_loader.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.
 
 /**
  * @fileoverview Deferred resource loader for OOBE/Login screens.
  */
 
 cr.define('cr.ui.login.ResourceLoader', function() {
   'use strict';
@@ skipping 168 matching lines @@
     }
   }
 
   return {
     alreadyLoadedAssets: alreadyLoadedAssets,
     hasDeferredAssets: hasDeferredAssets,
     loadAssets: loadAssets,
     registerAssets: registerAssets
   };
 });