Integrate the Windows 8 code into the Chromium tree.

chrome/browser/ui/metro_driver/file_picker.h

Index: chrome/browser/ui/metro_driver/file_picker.h
diff --git a/chrome/browser/ui/metro_driver/file_picker.h b/chrome/browser/ui/metro_driver/file_picker.h
new file mode 100644
index 0000000000000000000000000000000000000000..ef56cb390828860d46184659c7eb78b52920b804
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+++ b/chrome/browser/ui/metro_driver/file_picker.h
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+// 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 CHROME_BROWSER_UI_METRO_DRIVER_FILE_PICKER_H_
+#define CHROME_BROWSER_UI_METRO_DRIVER_FILE_PICKER_H_
+
+#include <commdlg.h>
+
+// This function behaves similarly to GetOpenFileName, except it uses a
+// Metro file picker to pick a single or multiple file names.
+extern "C" __declspec(dllexport)
+BOOL MetroGetOpenFileName(OPENFILENAME* open_file_name);
+
+extern "C" __declspec(dllexport)
+BOOL MetroGetSaveFileName(OPENFILENAME* open_file_name);
+
+#endif  // CHROME_BROWSER_UI_METRO_DRIVER_FILE_PICKER_H_
+