IndexedDB: Enabled the LevelDB Bloom filter

content/browser/indexed_db/leveldb/leveldb_database.h

 // Copyright (c) 2013 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 CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_DATABASE_H_
 #define CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_DATABASE_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_piece.h"
 #include "content/common/content_export.h"
 #include "third_party/leveldatabase/src/include/leveldb/comparator.h"
 #include "third_party/leveldatabase/src/include/leveldb/status.h"
 
 namespace leveldb {
 class Comparator;
 class DB;
+class FilterPolicy;
 class Env;
 class Snapshot;
 }
 
 namespace content {
 
 class LevelDBComparator;
 class LevelDBDatabase;
 class LevelDBIterator;
 class LevelDBWriteBatch;
@@ skipping 66 matching lines @@
 
  protected:
   LevelDBDatabase();
 
  private:
   friend class LevelDBSnapshot;
 
   scoped_ptr<leveldb::Env> env_;
   scoped_ptr<leveldb::Comparator> comparator_adapter_;
   scoped_ptr<leveldb::DB> db_;
+  scoped_ptr<const leveldb::FilterPolicy> filter_policy_;
   const LevelDBComparator* comparator_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_INDEXED_DB_LEVELDB_LEVELDB_DATABASE_H_