[MD settings] collapse cookie details in subpage

chrome/browser/resources/settings/site_settings/site_data_details_subpage.js

 // Copyright 2015 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.
 
 (function() {
   'use strict';
 
 /**
  * 'site-data-details-subpage' Display cookie contents.
  */
@@ skipping 54 matching lines @@
 
   /**
    * settings.RouteObserverBehavior
    * @private
    */
   onCookiesLoaded_: function() {
     var node = this.rootCookieNode.fetchNodeBySite(this.siteTitle_);
     if (node) {
       this.site_ = node;
       this.entries_ = this.site_.getCookieList();
+      // Set up flag for expanding cookie details.
+      this.entries_.map(function(e) { return e.expanded_ = false; });
     } else {
       this.entries_ = [];
     }
   },
 
   /**
    * Recursively look up a node path for a leaf node with a given id.
    * @param {!settings.CookieTreeNode} node The node to start with.
    * @param {string} currentPath The path constructed so far.
    * @param {string} targetId The id of the target leaf node to look for.
@@ skipping 41 matching lines @@
 
   /**
    * A handler for when the user opts to remove all cookies.
    */
   removeAll: function() {
     this.browserProxy.removeCookie(this.site_.data.id);
   },
 });
 
 })();