old_contents: import Ember from 'ember';
  
  var computed = Ember.computed;
  var alias = computed.alias;
  
  /**
   * @class GoogleMapInfoWindowController
   * @extends Ember.Controller
   */
  export default Ember.Controller.extend({
    templateName: alias('model.templateName'),
    zIndex:       alias('model.zIndex'),
    lat:          alias('model.lat'),
    lng:          alias('model.lng'),
    isVisible:    alias('model.isVisible')
  });
  
new_contents: import Ember from 'ember';
  
  var computed = Ember.computed;
  var alias = computed.alias;
  
  /**
   * @class GoogleMapInfoWindowController
   * @extends Ember.Controller
   */
  export default Ember.Controller.extend({
    templateName: alias('model.templateName'),
    zIndex:       alias('model.zIndex'),
    lat:          alias('model.lat'),
    lng:          alias('model.lng'),
    isVisible:    alias('model.isVisible'),
    title:        alias('model.title'),
    description:  alias('model.description')
  });
  
subject: Create alias for title & description.