Parse comments according to parsing.md

sky/engine/core/html/parser/HTMLToken.h

 /*
  * 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
@@ skipping 32 matching lines @@
 }
 
 class HTMLToken {
     WTF_MAKE_NONCOPYABLE(HTMLToken);
     WTF_MAKE_FAST_ALLOCATED;
 public:
     enum Type {
         Uninitialized,
         StartTag,
         EndTag,
-        Comment,
         Character,
         EndOfFile,
     };
 
     class Attribute {
     public:
         class Range {
         public:
             int start;
             int end;
@@ skipping 43 matching lines @@
         m_baseOffset = offset;
     }
 
     void end(int endOffset)
     {
         m_range.end = endOffset - m_baseOffset;
     }
 
     const DataVector& data() const
     {
-        ASSERT(m_type == Character || m_type == Comment || m_type == StartTag || m_type == EndTag);
+        ASSERT(m_type == Character || m_type == StartTag || m_type == EndTag);
         return m_data;
     }
 
     bool isAll8BitData() const
     {
         return (m_orAllData <= 0xff);
     }
 
     const DataVector& name() const
     {
@@ skipping 163 matching lines @@
         m_data.append(character);
         m_orAllData |= character;
     }
 
     void appendToCharacter(const Vector<LChar, 32>& characters)
     {
         ASSERT(m_type == Character);
         m_data.appendVector(characters);
     }
 
-    /* Comment Tokens */
-
-    const DataVector& comment() const
-    {
-        ASSERT(m_type == Comment);
-        return m_data;
-    }
-
-    void beginComment()
-    {
-        ASSERT(m_type == Uninitialized);
-        m_type = Comment;
-    }
-
-    void appendToComment(UChar character)
-    {
-        ASSERT(character);
-        ASSERT(m_type == Comment);
-        m_data.append(character);
-        m_orAllData |= character;
-    }
-
 private:
     Type m_type;
     Attribute::Range m_range; // Always starts at zero.
     int m_baseOffset;
     DataVector m_data;
     UChar m_orAllData;
 
     // For StartTag and EndTag
     bool m_selfClosing;
     AttributeList m_attributes;
 
     // A pointer into m_attributes used during lexing.
     Attribute* m_currentAttribute;
 };
 
 }
 
 #endif