[MD settings] move cookie tree management to cookie tree behavior

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

 // Copyright 2016 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
  * 'site-data-details-dialog' provides a dialog to show details of site data
  * stored by a given site.
  */
 Polymer({
@@ skipping 60 matching lines @@
     if (dialog.open)
       dialog.close();
   },
 
   /**
    * Populates the dialog with the data about the site.
    * @private
    */
   populateDialog_: function() {
     this.title_ = loadTimeData.getStringF('siteSettingsCookieDialog',
-                                          this.site_.data_.title);
+                                          this.site_.data.title);
 
     this.entries_ = this.site_.getCookieList();
     if (this.entries_.length < 2) {
       // When there's only one item to show, hide the picker and change the
       // 'Remove All' button to read 'Remove' instead.
       this.$.container.hidden = true;
       this.$.clear.textContent =
           loadTimeData.getString('siteSettingsCookieRemove');
     } else {
       this.$.picker.value = this.entries_[0].id;
       this.lastSelectedIndex_ = 0;
     }
 
     this.populateItem_(this.entries_[0].id, this.site_);
   },
 
   /**
    * 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.
    * @return {string} The path of the node returned (or blank if not found).
    * @private
    */
   nodePath_: function(node, currentPath, targetId) {
-    if (node.data_.id == targetId)
+    if (node.data.id == targetId)
       return currentPath;
 
     for (var i = 0; i < node.children_.length; ++i) {
       var child = node.children_[i];
       var path = this.nodePath_(
-          child, currentPath + ',' + child.data_.id, targetId);
+          child, currentPath + ',' + child.data.id, targetId);
       if (path.length > 0)
         return path;
     }
 
     return '';
   },
 
   /**
    * Add the cookie data to the content section of this dialog.
    * @param {string} id The id of the cookie node to display.
    * @param {!settings.CookieTreeNode} site The current site.
    * @private
    */
   populateItem_: function(id, site) {
     var node = site.fetchNodeById(id, true);
     if (node)
-      this.cookieNodes_ = site.getCookieData(node);
+      this.cookieNodes_ = getCookieData(node.data);
   },
 
   /**
    * Called when a single item has been removed.
    * @param {!CookieRemovePacket} args The details about what to remove.
    * @private
    */
   onTreeItemRemoved_: function(args) {
     this.entries_ = this.site_.getCookieList();
     if (this.site_.children_.length == 0 || this.entries_.length == 0) {
@@ skipping 35 matching lines @@
 
     return getCookieDataCategoryText(item.data.type, item.data.totalUsage);
   },
 
   /**
    * A handler for when the user opts to remove a single cookie.
    * @private
    */
   onRemove_: function(event) {
     this.browserProxy.removeCookie(this.nodePath_(
-        this.site_, this.site_.data_.id, this.$.picker.value));
+        this.site_, this.site_.data.id, this.$.picker.value));
   },
 
   /**
    * A handler for when the user opts to remove all cookies.
    * @private
    */
   onRemoveAll_: function(event) {
     cr.removeWebUIListener(this.listener_);
-    this.browserProxy.removeCookie(this.site_.data_.id);
+    this.browserProxy.removeCookie(this.site_.data.id);
     this.close();
   },
 
   /** @private */
   onCancelTap_: function() {
     this.$.dialog.cancel();
   },
 });