Remove a bunch of OS(MACOSX) code

sky/engine/wtf/StringExtras.h

 /*
  * Copyright (C) 2006, 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WTF_StringExtras_h
 #define WTF_StringExtras_h
 
-#if OS(POSIX)
-#define HAVE_STRINGS_H 1
-#endif
-
-#if !defined(HAVE_STRNSTR)

[ojan, 2014/11/11 23:35:48]

Do we know this is always false?

-#if OS(MACOSX) || (OS(FREEBSD) && !defined(__GLIBC__))
-#define HAVE_STRNSTR 1
-#endif
-#endif
-
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
-
-#if HAVE(STRINGS_H)
 #include <strings.h>
-#endif
-
-#if COMPILER(MSVC)
-// FIXME: why a COMPILER check instead of OS? also, these should be HAVE checks
-
-inline int snprintf(char* buffer, size_t count, const char* format, ...)
-{
-    int result;
-    va_list args;
-    va_start(args, format);
-    result = _vsnprintf(buffer, count, format, args);
-    va_end(args);
-
-    // In the case where the string entirely filled the buffer, _vsnprintf will not
-    // null-terminate it, but snprintf must.
-    if (count > 0)
-        buffer[count - 1] = '\0';
-
-    return result;
-}
-
-inline double wtf_vsnprintf(char* buffer, size_t count, const char* format, va_list args)
-{
-    int result = _vsnprintf(buffer, count, format, args);
-
-    // In the case where the string entirely filled the buffer, _vsnprintf will not
-    // null-terminate it, but vsnprintf must.
-    if (count > 0)
-        buffer[count - 1] = '\0';
-
-    return result;
-}
-
-// Work around a difference in Microsoft's implementation of vsnprintf, where
-// vsnprintf does not null terminate the buffer. WebKit can rely on the null termination.
-#define vsnprintf(buffer, count, format, args) wtf_vsnprintf(buffer, count, format, args)
-
-inline int strncasecmp(const char* s1, const char* s2, size_t len)
-{
-    return _strnicmp(s1, s2, len);
-}
-
-inline int strcasecmp(const char* s1, const char* s2)
-{
-    return _stricmp(s1, s2);
-}
-
-#endif
 
 #if !HAVE(STRNSTR)
 
 inline char* strnstr(const char* buffer, const char* target, size_t bufferLength)
 {
     size_t targetLength = strlen(target);
     if (targetLength == 0)
         return const_cast<char*>(buffer);
     for (const char* start = buffer; *start && start + targetLength <= buffer + bufferLength; start++) {
         if (*start == *target && strncmp(start + 1, target + 1, targetLength - 1) == 0)
             return const_cast<char*>(start);
     }
     return 0;
 }
 
 #endif
 
 #endif // WTF_StringExtras_h