Rename OS(DARWIN) to OS(MACOSX).

Source/wtf/text/ASCIIFastPath.h

 /*
  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 10 matching lines @@
 
 #ifndef ASCIIFastPath_h
 #define ASCIIFastPath_h
 
 #include "wtf/Alignment.h"
 #include "wtf/CPU.h"
 #include "wtf/StdLibExtras.h"
 #include "wtf/unicode/Unicode.h"
 #include <stdint.h>
 
-#if OS(DARWIN) && (CPU(X86) || CPU(X86_64))
+#if OS(MACOSX) && (CPU(X86) || CPU(X86_64))
 #include <emmintrin.h>
 #endif
 
 namespace WTF {
 
 // Assuming that a pointer is the size of a "machine word", then
 // uintptr_t is an integer type that is also a machine word.
 typedef uintptr_t MachineWord;
 const uintptr_t machineWordAlignmentMask = sizeof(MachineWord) - 1;
 
@@ skipping 55 matching lines @@
         allCharBits |= *characters;
         ++characters;
     }
 
     MachineWord nonASCIIBitMask = NonASCIIMask<sizeof(MachineWord), CharacterType>::value();
     return !(allCharBits & nonASCIIBitMask);
 }
 
 inline void copyLCharsFromUCharSource(LChar* destination, const UChar* source, size_t length)
 {
-#if OS(DARWIN) && (CPU(X86) || CPU(X86_64))
+#if OS(MACOSX) && (CPU(X86) || CPU(X86_64))
     const uintptr_t memoryAccessSize = 16; // Memory accesses on 16 byte (128 bit) alignment
     const uintptr_t memoryAccessMask = memoryAccessSize - 1;
 
     size_t i = 0;
     for (;i < length && !isAlignedTo<memoryAccessMask>(&source[i]); ++i) {
         ASSERT(!(source[i] & 0xff00));
         destination[i] = static_cast<LChar>(source[i]);
     }
 
     const uintptr_t sourceLoadSize = 32; // Process 32 bytes (16 UChars) each iteration
@@ skipping 44 matching lines @@
     for (size_t i = 0; i < length; ++i) {
         ASSERT(!(source[i] & 0xff00));
         destination[i] = static_cast<LChar>(source[i]);
     }
 #endif
 }
 
 } // namespace WTF
 
 #endif // ASCIIFastPath_h