Rename OS(DARWIN) to OS(MACOSX).

Source/config.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2013 Apple Inc.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2007-2009 Torch Mobile, Inc.
  * Copyright (C) 2010, 2011 Research In Motion Limited. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 33 matching lines @@
 #define ENABLE(WTF_FEATURE) (defined ENABLE_##WTF_FEATURE  && ENABLE_##WTF_FEATURE)
 
 /* ==== OS() - underlying operating system; only to be used for mandated low-level services like
    virtual memory, not to choose a GUI toolkit ==== */
 
 /* OS(ANDROID) - Android */
 #ifdef ANDROID
 #define WTF_OS_ANDROID 1
 #endif
 
-/* OS(DARWIN) - Any Darwin-based OS, including Mac OS X and iPhone OS */
+/* OS(MACOSX) - Any Darwin-based OS, including Mac OS X and iPhone OS */
 #ifdef __APPLE__
-#define WTF_OS_DARWIN 1
+#define WTF_OS_MACOSX 1
 #endif
 
 /* OS(FREEBSD) - FreeBSD */
 #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
 #define WTF_OS_FREEBSD 1
 #endif
 
 /* OS(LINUX) - Linux */
 #ifdef __linux__
 #define WTF_OS_LINUX 1
 #endif
 
 /* OS(NETBSD) - NetBSD */
 #if defined(__NetBSD__)
 #define WTF_OS_NETBSD 1
 #endif
 
 /* OS(OPENBSD) - OpenBSD */
 #ifdef __OpenBSD__
 #define WTF_OS_OPENBSD 1
 #endif
 
 /* OS(WINDOWS) - Any version of Windows */
 #if defined(WIN32) || defined(_WIN32)
 #define WTF_OS_WINDOWS 1
 #endif
 
 /* OS(UNIX) - Any Unix-like system */
 #if OS(ANDROID)          \
-    || OS(DARWIN)           \
+    || OS(MACOSX)           \
     || OS(FREEBSD)          \
     || OS(LINUX)            \
     || OS(NETBSD)           \
     || OS(OPENBSD)          \
     || defined(unix)        \
     || defined(__unix)      \
     || defined(__unix__)
 #define WTF_OS_UNIX 1
 #endif
 
 /* Operating environments */
 
 #if OS(ANDROID)
 #define WTF_USE_LOW_QUALITY_IMAGE_INTERPOLATION 1
 #define WTF_USE_LOW_QUALITY_IMAGE_NO_JPEG_DITHERING 1
 #define WTF_USE_LOW_QUALITY_IMAGE_NO_JPEG_FANCY_UPSAMPLING 1
 #else
 #define WTF_USE_ICCJPEG 1
 #define WTF_USE_QCMSLIB 1
 #endif
 
-#if OS(DARWIN)
+#if OS(MACOSX)
 #define WTF_USE_CF 1
 
-/* We can't override the global operator new and delete on OS(DARWIN) because
+/* We can't override the global operator new and delete on OS(MACOSX) because
  * some object are allocated by WebKit and deallocated by the embedder. */
-#else /* !OS(DARWIN) */
-/* On non-OS(DARWIN), the "system malloc" is actually TCMalloc anyway, so there's
+#else /* !OS(MACOSX) */
+/* On non-OS(MACOSX), the "system malloc" is actually TCMalloc anyway, so there's
  * no need to use WebKit's copy of TCMalloc. */
 #define WTF_USE_SYSTEM_MALLOC 1
-#endif /* OS(DARWIN) */
+#endif /* OS(MACOSX) */
 
 #if !defined(HAVE_ACCESSIBILITY)
 #define HAVE_ACCESSIBILITY 1
 #endif /* !defined(HAVE_ACCESSIBILITY) */
 
 #if OS(UNIX)
 #define HAVE_MMAP 1
 #define HAVE_SIGNAL_H 1
 #define HAVE_SYS_TIME_H 1
 #define WTF_USE_PTHREADS 1
 #endif /* OS(UNIX) */
 
 #if !defined(HAVE_VASPRINTF)
 #if !COMPILER(MSVC)
 #define HAVE_VASPRINTF 1
 #endif
 #endif
 
 #if !OS(WINDOWS) && !OS(ANDROID)
 #define HAVE_TM_GMTOFF 1
 #define HAVE_TM_ZONE 1
 #define HAVE_TIMEGM 1
 #endif
 
-#if OS(DARWIN)
+#if OS(MACOSX)
 #define HAVE_DISPATCH_H 1
 #define HAVE_PTHREAD_SETNAME_NP 1
-#endif /* OS(DARWIN) */
+#endif /* OS(MACOSX) */
 
 #if OS(WINDOWS)
 
 // If we don't define these, they get defined in windef.h.
 // We want to use std::min and std::max.
 #ifndef max
 #define max max
 #endif
 #ifndef min
 #define min min
@@ skipping 15 matching lines @@
 
 #if COMPILER(MSVC)
 #define SKIP_STATIC_CONSTRUCTORS_ON_MSVC 1
 #else
 #define SKIP_STATIC_CONSTRUCTORS_ON_GCC 1
 #endif
 
 #ifndef __STDC_FORMAT_MACROS
 #define __STDC_FORMAT_MACROS 1
 #endif