Refactor MarkupAccumulator::appendCharactersReplacingEntities()

Source/core/editing/MarkupAccumulator.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple 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
@@ skipping 39 matching lines @@
 
     // Non-breaking space needs to be escaped in innerHTML for compatibility reason. See http://trac.webkit.org/changeset/32879
     // However, we cannot do this in a XML document because it does not have the entity reference defined (See the bug 19215).
     EntityMaskInCDATA = 0,
     EntityMaskInPCDATA = EntityAmp | EntityLt | EntityGt,
     EntityMaskInHTMLPCDATA = EntityMaskInPCDATA | EntityNbsp,
     EntityMaskInAttributeValue = EntityAmp | EntityQuot | EntityLt | EntityGt,
     EntityMaskInHTMLAttributeValue = EntityAmp | EntityQuot | EntityNbsp,
 };
 
-struct EntityDescription {
-    UChar entity;
-    const String& reference;
-    EntityMask mask;
-};
-
 class MarkupAccumulator {
     WTF_MAKE_NONCOPYABLE(MarkupAccumulator);
 
 public:
     MarkupAccumulator(Vector<Node*>*, EAbsoluteURLs, const Range* = 0);
     virtual ~MarkupAccumulator();
 
     String serializeNodes(Node* targetNode, EChildrenOnly, Vector<QualifiedName>* tagNamesToSkip = 0);
 
     static void appendComment(StringBuilder&, const String&);
@@ skipping 36 matching lines @@
     void appendQuotedURLAttributeValue(StringBuilder&, const Element*, const Attribute&);
     void serializeNodesWithNamespaces(Node* targetNode, EChildrenOnly, const Namespaces*, Vector<QualifiedName>* tagNamesToSkip);
 
     StringBuilder m_markup;
     const EAbsoluteURLs m_resolveURLsMethod;
 };
 
 }
 
 #endif