We need to save bookmarks file when the persist_ids settings changes...

chrome/browser/bookmarks/bookmark_storage.cc

 // Copyright (c) 2006-2008 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/bookmarks/bookmark_storage.h"
 
 #include "base/compiler_specific.h"
 #include "base/file_util.h"
 #include "base/histogram.h"
 #include "base/json_writer.h"
@@ skipping 74 matching lines @@
 
       if (root.get()) {
         // Building the index cane take a while, so we do it on the background
         // thread.
         int max_node_id = 0;
         BookmarkCodec codec(persist_ids_);
         TimeTicks start_time = TimeTicks::Now();
         codec.Decode(details_->bb_node(), details_->other_folder_node(),
                      &max_node_id, *root.get());
         details_->set_max_id(std::max(max_node_id, details_->max_id()));
+        details_->set_computed_checksum(codec.computed_checksum());
+        details_->set_stored_checksum(codec.stored_checksum());
         UMA_HISTOGRAM_TIMES("Bookmarks.DecodeTime",
                             TimeTicks::Now() - start_time);
 
         start_time = TimeTicks::Now();
         AddBookmarksToIndex(details_->bb_node());
         AddBookmarksToIndex(details_->other_folder_node());
         UMA_HISTOGRAM_TIMES("Bookmarks.CreateBookmarkIndexTime",
                             TimeTicks::Now() - start_time);
       }
     }
@@ skipping 168 matching lines @@
 }
 
 void BookmarkStorage::RunTaskOnBackendThread(Task* task) const {
   if (backend_thread()) {
     backend_thread()->message_loop()->PostTask(FROM_HERE, task);
   } else {
     task->Run();
     delete task;
   }
 }