Add FileUtileHelper

webkit/fileapi/file_util_helper.h

Index: webkit/fileapi/file_util_helper.h
diff --git a/webkit/fileapi/file_util_helper.h b/webkit/fileapi/file_util_helper.h
new file mode 100644
index 0000000000000000000000000000000000000000..91c6e7ab602a571b138cce20c4f5930939bd9e21
--- /dev/null
+++ b/webkit/fileapi/file_util_helper.h
@@ -0,0 +1,35 @@
+// 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 WEBKIT_FILEAPI_FILE_UTIL_HELPER_H_
+#define WEBKIT_FILEAPI_FILE_UTIL_HELPER_H_
+
+#include "base/platform_file.h"
+
+namespace fileapi {
+
+class FileSystemFileUtil;
+class FileSystemOperationContext;
+class FileSystemPath;
+
+// A collection of static methods that are usually called by
+// FileSystemFileUtilProxy.  The method should be called on FILE thread.
+class FileUtilHelper {
+ public:
+  static base::PlatformFileError Delete(
+      FileSystemOperationContext* context,
+      FileSystemFileUtil* file_util,
+      const FileSystemPath& path,
+      bool recursive);
+
+ private:
+  static base::PlatformFileError DeleteDirectoryRecursive(
+      FileSystemOperationContext* context,
+      FileSystemFileUtil* file_util,
+      const FileSystemPath& path);
+};
+
+}  // namespace fileapi
+
+#endif  // WEBKIT_FILEAPI_FILE_UTIL_HELPER_H_