Replaced HTMLIdentifier with an atomized string factory function

Source/core/html/parser/HTMLIdentifier.h

Index: Source/core/html/parser/HTMLIdentifier.h
diff --git a/Source/core/html/parser/HTMLIdentifier.h b/Source/core/html/parser/HTMLIdentifier.h
deleted file mode 100644
index 003401314234ae5f0dfa3c35500594457900f15d..0000000000000000000000000000000000000000
--- a/Source/core/html/parser/HTMLIdentifier.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright (C) 2013 Google, 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 GOOGLE 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 GOOGLE 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 HTMLIdentifier_h
-#define HTMLIdentifier_h
-
-#include "wtf/text/WTFString.h"
-
-namespace WebCore {
-
-class QualifiedName;
-
-enum CharacterWidth {
-    Likely8Bit,
-    Force8Bit,
-    Force16Bit
-};
-
-class HTMLIdentifier {
-public:
-    HTMLIdentifier() { }
-
-    template<size_t inlineCapacity>
-    HTMLIdentifier(const Vector<UChar, inlineCapacity>& vector, CharacterWidth width)
-        : m_string(findIfKnown(vector.data(), vector.size()))
-    {
-        if (m_string.impl())
-            return;
-        if (width == Likely8Bit)
-            m_string = StringImpl::create8BitIfPossible(vector);
-        else if (width == Force8Bit)
-            m_string = String::make8BitFrom16BitSource(vector);
-        else
-            m_string = String(vector);
-    }
-
-    // asString should only be used on the main thread.
-    const String& asString() const;
-    // asStringImpl() is safe to call from any thread.
-    const StringImpl* asStringImpl() const;
-
-    static void init();
-
-    bool isSafeToSendToAnotherThread() const { return m_string.isSafeToSendToAnotherThread(); }
-
-#ifndef NDEBUG
-    static bool isKnown(const StringImpl*);
-#endif
-
-private:
-    static unsigned maxNameLength;
-    static StringImpl* findIfKnown(const UChar* characters, unsigned length);
-    static void addNames(const QualifiedName* const* names, unsigned namesCount);
-
-    String m_string;
-};
-
-}
-
-#endif