Revert "Revert 84829 - Initial implementation of "Synced Bookmarks" folder."

chrome/browser/extensions/extension_bookmarks_module.cc

 // Copyright (c) 2011 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/extension_bookmarks_module.h"
 
 #include "base/file_path.h"
 #include "base/i18n/file_util_icu.h"
 #include "base/i18n/time_formatting.h"
 #include "base/json/json_writer.h"
@@ skipping 503 matching lines @@
 
   DictionaryValue* destination;
   EXTENSION_FUNCTION_VALIDATE(args_->GetDictionary(1, &destination));
 
   BookmarkModel* model = profile()->GetBookmarkModel();
   const BookmarkNode* node = model->GetNodeByID(ids.front());
   if (!node) {
     error_ = keys::kNoNodeError;
     return false;
   }
-  if (node == model->root_node() ||
-      node == model->other_node() ||
-      node == model->GetBookmarkBarNode()) {
+  if (model->is_permanent_node(node)) {
     error_ = keys::kModifySpecialError;
     return false;
   }
 
   const BookmarkNode* parent = NULL;
   if (!destination->HasKey(keys::kParentIdKey)) {
     // Optional, defaults to current parent.
     parent = node->parent();
   } else {
     std::string parentId_string;
@@ skipping 71 matching lines @@
     error_ = keys::kInvalidUrlError;
     return false;
   }
 
   BookmarkModel* model = profile()->GetBookmarkModel();
   const BookmarkNode* node = model->GetNodeByID(ids.front());
   if (!node) {
     error_ = keys::kNoNodeError;
     return false;
   }
-  if (node == model->root_node() ||
-      node == model->other_node() ||
-      node == model->GetBookmarkBarNode()) {
+  if (model->is_permanent_node(node)) {
     error_ = keys::kModifySpecialError;
     return false;
   }
   if (has_title)
     model->SetTitle(node, title);
   if (!url.is_empty())
     model->SetURL(node, url);
 
   DictionaryValue* ret =
       extension_bookmark_helpers::GetNodeDictionary(node, false, false);
@@ skipping 277 matching lines @@
   SelectFile(SelectFileDialog::SELECT_SAVEAS_FILE);
   return true;
 }
 
 void ExportBookmarksFunction::FileSelected(const FilePath& path,
                                            int index,
                                            void* params) {
   bookmark_html_writer::WriteBookmarks(profile(), path, NULL);
   Release();  // Balanced in BookmarksIOFunction::SelectFile()
 }