history: Move kBookmarkBarID constant out of HistoryService.

chrome/browser/history/starred_url_database.h

 // 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.
 
 #ifndef CHROME_BROWSER_HISTORY_STARRED_URL_DATABASE_H_
 #define CHROME_BROWSER_HISTORY_STARRED_URL_DATABASE_H_
 #pragma once
 
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/string16.h"
 #include "chrome/browser/history/history_types.h"
 #include "chrome/browser/history/url_database.h"
 #include "ui/base/models/tree_node_model.h"
 
 class FilePath;
 
 namespace sql {
 class Connection;
 }
 
 namespace history {
 
+// ID (both star_id and folder_id) of the bookmark bar.
+// This entry always exists.
+extern const int64 kBookmarkBarID;

[sky, 2011/07/07 15:37:02]

This should be a static member of StarredURLDatabase.

[tfarina, 2011/07/07 16:19:50]

Done.

+
 // Bookmarks were originally part of the url database, they have since been
 // moved to a separate file. This file exists purely for historical reasons and
 // contains just enough to allow migration.
 class StarredURLDatabase : public URLDatabase {
  public:
   // Must call InitStarTable() AND any additional init functions provided by
   // URLDatabase before using this class' functions.
   StarredURLDatabase();
   virtual ~StarredURLDatabase();
 
@@ skipping 141 matching lines @@
   // Does the work of migrating bookmarks to a temporary file that
   // BookmarkStorage will read from.
   bool MigrateBookmarksToFileImpl(const FilePath& path);
 
   DISALLOW_COPY_AND_ASSIGN(StarredURLDatabase);
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_STARRED_URL_DATABASE_H_