Remove #pragma once from content

content/browser/safe_util_win.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 CONTENT_COMMON_SAFE_UTIL_WIN_H_
 #define CONTENT_COMMON_SAFE_UTIL_WIN_H_
-#pragma once
 
 #include <string>
 #include <windows.h>
 
 class FilePath;
 
 namespace win_util {
 
 // Open or run a downloaded file via the Windows shell, possibly showing first
 // a consent dialog if the the file is deemed dangerous. This function is an
@@ skipping 29 matching lines @@
 // It should not be considered fatal.
 //
 // |full_path| is the path to save the file to, and
 // |source_url| is the URL where the file was downloaded from.
 bool SetInternetZoneIdentifier(const FilePath& full_path,
                                const std::wstring& source_url);
 
 }  // namespace win_util
 
 #endif  // CONTENT_COMMON_SAFE_UTIL_WIN_H_