diff -r 000000000000 -r 6474c204b198 ipc/chromium/src/base/sys_string_conversions.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/chromium/src/base/sys_string_conversions.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+// Copyright (c) 2006-2008 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 BASE_SYS_STRING_CONVERSIONS_H_
+#define BASE_SYS_STRING_CONVERSIONS_H_
+
+// Provides system-dependent string type conversions for cases where it's
+// necessary to not use ICU. Generally, you should not need this in Chrome,
+// but it is used in some shared code. Dependencies should be minimal.
+
+#include <string>
+#include "base/basictypes.h"
+#include "base/string16.h"
+
+class StringPiece;
+
+namespace base {
+
+// Converts between wide and UTF-8 representations of a string. On error, the
+// result is system-dependent.
+std::string SysWideToUTF8(const std::wstring& wide);
+std::wstring SysUTF8ToWide(const StringPiece& utf8);
+
+// Converts between wide and the system multi-byte representations of a string.
+// DANGER: This will lose information and can change (on Windows, this can
+// change between reboots).
+std::string SysWideToNativeMB(const std::wstring& wide);
+std::wstring SysNativeMBToWide(const StringPiece& native_mb);
+
+// Windows-specific ------------------------------------------------------------
+
+#if defined(OS_WIN)
+
+// Converts between 8-bit and wide strings, using the given code page. The
+// code page identifier is one accepted by the Windows function
+// MultiByteToWideChar().
+std::wstring SysMultiByteToWide(const StringPiece& mb, uint32_t code_page);
+std::string SysWideToMultiByte(const std::wstring& wide, uint32_t code_page);
+
+#endif  // defined(OS_WIN)
+
+}  // namespace base
+
+#endif  // BASE_SYS_STRING_CONVERSIONS_H_