Revert 36541 (which went in without any commit log by some black magic). ...

third_party/cld/base/string_util.h

 // 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.
 //
 // This file defines utility functions for working with strings.
 
 #ifndef BASE_STRING_UTIL_H_
 #define BASE_STRING_UTIL_H_
 
 #include <string.h>
 
 namespace base {
 
-#ifdef WIN32
 // Compare the two strings s1 and s2 without regard to case using
 // the current locale; returns 0 if they are equal, 1 if s1 > s2, and -1 if
 // s2 > s1 according to a lexicographic comparison.
 inline int strcasecmp(const char* s1, const char* s2) {
   return _stricmp(s1, s2);
 }
-#else
-inline int strcasecmp(const char* s1, const char* s2) {
-  return strcasecmp(s1, s2);
-}
-#endif
 
 }
 
 #endif  // BASE_STRING_UTIL_H_