Delete utf_util_win.h.

webrtc/system_wrappers/include/utf_util_win.h

-/*
- *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-// Conversion functions for UTF-8 and UTF-16 strings on Windows.
-// Duplicated from talk/base/win32.h.
-#ifndef WEBRTC_SYSTEM_WRAPPERS_INCLUDE_UTF_UTIL_H_
-#define WEBRTC_SYSTEM_WRAPPERS_INCLUDE_UTF_UTIL_H_
-
-#ifdef WIN32
-#include <windows.h>
-
-#include <memory>
-#include <string>
-
-
-namespace webrtc {
-
-inline std::wstring ToUtf16(const char* utf8, size_t len) {
-  int len16 = ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len),
-                                    NULL, 0);
-  std::unique_ptr<wchar_t[]> ws(new wchar_t[len16]);
-  ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len), ws.get(),
-                        len16);
-  return std::wstring(ws.get(), len16);
-}
-
-inline std::wstring ToUtf16(const std::string& str) {
-  return ToUtf16(str.data(), str.length());
-}
-
-inline std::string ToUtf8(const wchar_t* wide, size_t len) {
-  int len8 = ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len),
-                                   NULL, 0, NULL, NULL);
-  std::unique_ptr<char[]> ns(new char[len8]);
-  ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len), ns.get(), len8,
-                        NULL, NULL);
-  return std::string(ns.get(), len8);
-}
-
-inline std::string ToUtf8(const wchar_t* wide) {
-  return ToUtf8(wide, wcslen(wide));
-}
-
-inline std::string ToUtf8(const std::wstring& wstr) {
-  return ToUtf8(wstr.data(), wstr.length());
-}
-
-}  // namespace webrtc
-
-#endif  // WIN32
-#endif  // WEBRTC_SYSTEM_WRAPPERS_INCLUDE_UTF_UTIL_H_