Implement Bookmark All Tabs Dialog with WebUI.

chrome/browser/resources/bookmark_manager/js/bmm/bookmark_tree.js

 // Copyright (c) 2010 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.
 
 
 cr.define('bmm', function() {
   const Tree = cr.ui.Tree;
   const TreeItem = cr.ui.TreeItem;
 
   var treeLookup = {};
+  var tree;
 
   // Manager for persisting the expanded state.
   var expandedManager = {
     /**
      * A map of the collapsed IDs.
      * @type {Object}
      */
     map: 'bookmarkTreeState' in localStorage ?
         JSON.parse(localStorage['bookmarkTreeState']) : {},
 
@@ skipping 139 matching lines @@
    */
   var BookmarkTree = cr.ui.define('tree');
 
   BookmarkTree.prototype = {
     __proto__: Tree.prototype,
 
     decorate: function() {
       Tree.prototype.decorate.call(this);
       this.addEventListener('expand', expandedManager);
       this.addEventListener('collapse', expandedManager);
+      bmm.tree = this;
     },
 
     handleBookmarkChanged: function(id, changeInfo) {
       var treeItem = treeLookup[id];
       if (treeItem)
         treeItem.label = treeItem.bookmarkNode.title = changeInfo.title;
     },
 
     handleChildrenReordered: function(id, reorderInfo) {
       var parentItem = treeLookup[id];
@@ skipping 113 matching lines @@
     remove: function(child) {
       Tree.prototype.remove.call(this, child);
       if (child.bookmarkNode)
         delete treeLookup[child.bookmarkNode.id];
     }
   };
 
   return {
     BookmarkTree: BookmarkTree,
     BookmarkTreeItem: BookmarkTreeItem,
-    treeLookup: treeLookup
+    treeLookup: treeLookup,
+    tree: tree
   };
 });