Avoid conversion of index to BookmarkNode pointer unnacessarily.

chrome/browser/extensions/api/bookmarks/bookmark_api_helpers.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/extensions/api/bookmarks/bookmark_api_helpers.h"
 
 #include <math.h>  // For floor()
 #include <vector>
 
 #include "base/strings/string_number_conversions.h"
@@ skipping 119 matching lines @@
       bookmarks::IsDescendantOf(node, client->supervised_node())) {
     *error = keys::kModifyManagedError;
     return false;
   }
   if (node->is_folder() && !node->empty() && !recursive) {
     *error = keys::kFolderNotEmptyError;
     return false;
   }
 
   const BookmarkNode* parent = node->parent();
-  model->Remove(parent, parent->GetIndexOf(node));
+  model->Remove(parent, node);
   return true;
 }
 
 void GetMetaInfo(const BookmarkNode& node,
                  base::DictionaryValue* id_to_meta_info_map) {
   if (!node.IsVisible())
     return;
 
   const BookmarkNode::MetaInfoMap* meta_info = node.GetMetaInfoMap();
   base::DictionaryValue* value = new base::DictionaryValue();
   if (meta_info) {
     BookmarkNode::MetaInfoMap::const_iterator itr;
     for (itr = meta_info->begin(); itr != meta_info->end(); ++itr) {
       value->SetStringWithoutPathExpansion(itr->first, itr->second);
     }
   }
   id_to_meta_info_map->Set(base::Int64ToString(node.id()), value);
 
   if (node.is_folder()) {
     for (int i = 0; i < node.child_count(); ++i) {
       GetMetaInfo(*(node.GetChild(i)), id_to_meta_info_map);
     }
   }
 }
 
 }  // namespace bookmark_api_helpers
 }  // namespace extensions