Add Chromium-only Blender WebEngine parity work

blender-5.2.0/source/blender/blenlib/BLI_fileops.hh

@@ -0,0 +1,36 @@
+/* SPDX-FileCopyrightText: 2023 Blender Authors
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup bli
+ * \brief File and directory operations.
+ */
+
+#pragma once
+
+#include "BLI_fileops.h"  // IWYU pragma: export
+#include "BLI_string_ref.hh"
+
+#include <fstream>
+#include <string>
+
+namespace blender {
+
+/**
+ * std::fstream subclass that handles UTF16 encoding on Windows.
+ *
+ * For documentation, see https://en.cppreference.com/w/cpp/io/basic_fstream
+ */
+class fstream : public std::fstream {
+ public:
+  fstream() = default;
+  explicit fstream(const char *filepath,
+                   std::ios_base::openmode mode = ios_base::in | ios_base::out);
+  explicit fstream(const std::string &filepath,
+                   std::ios_base::openmode mode = ios_base::in | ios_base::out);
+
+  void open(StringRefNull filepath, ios_base::openmode mode = ios_base::in | ios_base::out);
+};
+
+}  // namespace blender