base: Get rid of the deprecated SysInfo::GetEnvVar.

base/sys_info_win.cc

 // Copyright (c) 2010 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.
 
 #include "base/sys_info.h"
 
 #include <windows.h>
 
 #include "base/file_path.h"
 #include "base/logging.h"
@@ skipping 30 matching lines @@
   if (!GetDiskFreeSpaceExW(path.value().c_str(), &available, &total, &free)) {
     return -1;
   }
   int64 rv = static_cast<int64>(available.QuadPart);
   if (rv < 0)
     rv = kint64max;
   return rv;
 }
 
 // static
-std::wstring SysInfo::GetEnvVar(const wchar_t* var) {
-  DWORD value_length = GetEnvironmentVariable(var, NULL, 0);
-  if (value_length == 0) {
-    return L"";
-  }
-  scoped_array<wchar_t> value(new wchar_t[value_length]);
-  GetEnvironmentVariable(var, value.get(), value_length);
-  return std::wstring(value.get());
-}
-
-// static
 std::string SysInfo::OperatingSystemName() {
   return "Windows NT";
 }
 
 // static
 std::string SysInfo::OperatingSystemVersion() {
   OSVERSIONINFO info = {0};
   info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
   GetVersionEx(&info);
 
@@ skipping 38 matching lines @@
                                             int32 *bugfix_version) {
   OSVERSIONINFO info = {0};
   info.dwOSVersionInfoSize = sizeof(info);
   GetVersionEx(&info);
   *major_version = info.dwMajorVersion;
   *minor_version = info.dwMinorVersion;
   *bugfix_version = 0;
 }
 
 }  // namespace base