Part 3 of Move SelectFileDialog implementation to ui/base/dialogs/

ui/base/dialogs/select_file_dialog_win.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 UI_BASE_DIALOGS_SELECT_FILE_DIALOG_WIN_H_
+#define UI_BASE_DIALOGS_SELECT_FILE_DIALOG_WIN_H_
+
+#include "ui/base/ui_export.h"
+#include "ui/base/dialogs/select_file_dialog.h"
+#include "ui/gfx/native_widget_types.h"
+
+namespace ui {
+class SelectFilePolicy;
+
+// Implementation detail exported for unit tests.
+UI_EXPORT std::wstring AppendExtensionIfNeeded(
+    const std::wstring& filename,
+    const std::wstring& filter_selected,
+    const std::wstring& suggested_ext);
+
+// Intentionally not exported. Implementation detail of SelectFileDialog. Use
+// SelectFileDialog::Create() instead.
+SelectFileDialog* CreateWinSelectFileDialog(
+    SelectFileDialog::Listener* listener,
+    SelectFilePolicy* policy);
+
+}  // namespace ui
+
+#endif  //  UI_BASE_DIALOGS_SELECT_FILE_DIALOG_WIN_H_