Get rid of MetaTableHelper class and make use of the app/sql API in the LoginDatabase.

chrome/browser/history/thumbnail_database.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// 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.
 
 #ifndef CHROME_BROWSER_HISTORY_THUMBNAIL_DATABASE_H_
 #define CHROME_BROWSER_HISTORY_THUMBNAIL_DATABASE_H_
 
 #include <vector>
 
 #include "app/sql/connection.h"
 #include "app/sql/init_status.h"
 #include "app/sql/meta_table.h"
 #include "base/ref_counted.h"
 #include "chrome/browser/history/history_types.h"
 #include "chrome/browser/history/url_database.h"  // For DBCloseScoper.
-#include "chrome/browser/meta_table_helper.h"
 
 class FilePath;
 class RefCountedMemory;
 struct ThumbnailScore;
 class SkBitmap;
 
 namespace base {
 class Time;
 }
 
@@ skipping 137 matching lines @@
   // This object is created and managed by the history backend. We maintain an
   // opaque pointer to the object for our use.
   // This can be NULL if there are no indexers registered to receive indexing
   // data from us.
   const HistoryPublisher* history_publisher_;
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_THUMBNAIL_DATABASE_H_