Revert "Remove support for MSVC"

sky/engine/wtf/text/StringImpl.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. 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 14 matching lines @@
 
 #include <limits.h>
 #include "wtf/ASCIICType.h"
 #include "wtf/Forward.h"
 #include "wtf/HashMap.h"
 #include "wtf/StringHasher.h"
 #include "wtf/Vector.h"
 #include "wtf/WTFExport.h"
 #include "wtf/unicode/Unicode.h"
 
+#if USE(CF)
+typedef const struct __CFString * CFStringRef;
+#endif
+
+#ifdef __OBJC__
+@class NSString;
+#endif
+
 namespace WTF {
 
 struct AlreadyHashed;
 struct CStringTranslator;
 template<typename CharacterType> struct HashAndCharactersTranslator;
 struct HashAndUTF8CharactersTranslator;
 struct LCharBufferTranslator;
 struct CharBufferFromLiteralDataTranslator;
 struct SubstringTranslator;
 struct UCharBufferTranslator;
+template<typename> class RetainPtr;
 
 enum TextCaseSensitivity { TextCaseSensitive, TextCaseInsensitive };
 
 enum StripBehavior { StripExtraWhiteSpace, DoNotStripWhiteSpace };
 
 typedef bool (*CharacterMatchFunctionPtr)(UChar);
 typedef bool (*IsWhiteSpaceFunctionPtr)(UChar);
 typedef HashMap<unsigned, StringImpl*, AlreadyHashed> StaticStringsTable;
 
 // Define STRING_STATS to turn on run time statistics of string sizes and memory usage
@@ skipping 328 matching lines @@
 
     PassRefPtr<StringImpl> replace(UChar, UChar);
     PassRefPtr<StringImpl> replace(UChar, StringImpl*);
     ALWAYS_INLINE PassRefPtr<StringImpl> replace(UChar pattern, const char* replacement, unsigned replacementLength) { return replace(pattern, reinterpret_cast<const LChar*>(replacement), replacementLength); }
     PassRefPtr<StringImpl> replace(UChar, const LChar*, unsigned replacementLength);
     PassRefPtr<StringImpl> replace(UChar, const UChar*, unsigned replacementLength);
     PassRefPtr<StringImpl> replace(StringImpl*, StringImpl*);
     PassRefPtr<StringImpl> replace(unsigned index, unsigned len, StringImpl*);
     PassRefPtr<StringImpl> upconvertedString();
 
+#if USE(CF)
+    RetainPtr<CFStringRef> createCFString();
+#endif
+#ifdef __OBJC__
+    operator NSString*();
+#endif
+
 #ifdef STRING_STATS
     ALWAYS_INLINE static StringStats& stringStats() { return m_stringStats; }
 #endif
 
 private:
     template<typename CharType> static size_t allocationSize(unsigned length)
     {
         RELEASE_ASSERT(length <= ((std::numeric_limits<unsigned>::max() - sizeof(StringImpl)) / sizeof(CharType)));
         return sizeof(StringImpl) + length * sizeof(CharType);
     }
@@ skipping 312 matching lines @@
 }
 
 using WTF::StringImpl;
 using WTF::equal;
 using WTF::equalNonNull;
 using WTF::TextCaseSensitivity;
 using WTF::TextCaseSensitive;
 using WTF::TextCaseInsensitive;
 
 #endif