FileSystem: Prevent iterator from being deleted after database.

storage/browser/fileapi/sandbox_directory_database.h

 // Copyright (c) 2012 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 STORAGE_BROWSER_FILEAPI_SANDBOX_DIRECTORY_DATABASE_H_
 #define STORAGE_BROWSER_FILEAPI_SANDBOX_DIRECTORY_DATABASE_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 105 matching lines @@
   friend class ObfuscatedFileUtil;
 
   bool Init(RecoveryOption recovery_option);
   bool RepairDatabase(const std::string& db_path);
   void ReportInitStatus(const leveldb::Status& status);
   bool StoreDefaultValues();
   bool GetLastFileId(FileId* file_id);
   bool AddFileInfoHelper(
       const FileInfo& info, FileId file_id, leveldb::WriteBatch* batch);
   bool RemoveFileInfoHelper(FileId file_id, leveldb::WriteBatch* batch);
+  // Close the database. Before this, all iterators associated with the database
+  // must be deleted.
   void HandleError(const tracked_objects::Location& from_here,
                    const leveldb::Status& status);
 
   const base::FilePath filesystem_data_directory_;
   leveldb::Env* env_override_;
   scoped_ptr<leveldb::DB> db_;
   base::Time last_reported_time_;
   DISALLOW_COPY_AND_ASSIGN(SandboxDirectoryDatabase);
 };
 
 }  // namespace storage
 
 #endif  // STORAGE_BROWSER_FILEAPI_SANDBOX_DIRECTORY_DATABASE_H_