roll clang 131935:132017

webkit/fileapi/file_system_file_util.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 WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
 
 #include "base/callback.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 214 matching lines @@
     virtual bool IsDirectory() = 0;
   };
 
   class EmptyFileEnumerator : public AbstractFileEnumerator {
     virtual FilePath Next() { return FilePath(); }
     virtual bool IsDirectory() { return false; }
   };
 
  protected:
   FileSystemFileUtil() { }
+  virtual ~FileSystemFileUtil() { }
 
   // Deletes a directory and all entries under the directory.
   //
   // This method is called from Delete.  It internally calls two following
   // virtual methods,
   // - (virtual) DeleteFile to delete files, and
   // - (virtual) DeleteSingleDirectory to delete empty directories after all
   // the files are deleted.
   PlatformFileError DeleteDirectoryRecursive(
       FileSystemOperationContext* context,
@@ skipping 35 matching lines @@
       FileSystemOperationContext* unused,
       const FilePath& root_path);
 
   friend struct DefaultSingletonTraits<FileSystemFileUtil>;
   DISALLOW_COPY_AND_ASSIGN(FileSystemFileUtil);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_