Replaced HTMLIdentifier with an atomized string factory function

Source/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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef StringImpl_h
 #define StringImpl_h
 
 #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
 #undef STRING_STATS
 
 #ifdef STRING_STATS
 struct StringStats {
     inline void add8BitString(unsigned length)
     {
         ++m_totalNumberStrings;
         ++m_number8BitStrings;
@@ skipping 104 matching lines @@
         , m_is8Bit(true)
         , m_isStatic(true)
     {
     }
 
 public:
     ~StringImpl();
 
     static StringImpl* createStatic(const char* string, unsigned length, unsigned hash);
     static void freezeStaticStrings();
-    static const Vector<StringImpl*>& allStaticStrings();
+    static const StaticStringsTable& allStaticStrings();
+    static unsigned highestStaticStringLength() { return m_highestStaticStringLength; }
 
     static PassRefPtr<StringImpl> create(const UChar*, unsigned length);
     static PassRefPtr<StringImpl> create(const LChar*, unsigned length);
     static PassRefPtr<StringImpl> create8BitIfPossible(const UChar*, unsigned length);
     template<size_t inlineCapacity>
     static PassRefPtr<StringImpl> create8BitIfPossible(const Vector<UChar, inlineCapacity>& vector)
     {
         return create8BitIfPossible(vector.data(), vector.size());
     }
 
@@ skipping 241 matching lines @@
     static const unsigned s_copyCharsInlineCutOff = 20;
 
     template <class UCharPredicate> PassRefPtr<StringImpl> stripMatchedCharacters(UCharPredicate);
     template <typename CharType, class UCharPredicate> PassRefPtr<StringImpl> simplifyMatchedCharactersToSpace(UCharPredicate, StripBehavior);
     NEVER_INLINE unsigned hashSlowCase() const;
 
 #ifdef STRING_STATS
     static StringStats m_stringStats;
 #endif
 
+    static unsigned m_highestStaticStringLength;
+
 #ifndef NDEBUG
     void assertHashIsCorrect()
     {
         ASSERT(hasHash());
         ASSERT(existingHash() == StringHasher::computeHashAndMaskTop8Bits(characters8(), length()));
     }
 #endif
 
 private:
     unsigned m_refCount;
@@ skipping 291 matching lines @@
 }
 
 using WTF::StringImpl;
 using WTF::equal;
 using WTF::equalNonNull;
 using WTF::TextCaseSensitivity;
 using WTF::TextCaseSensitive;
 using WTF::TextCaseInsensitive;
 
 #endif