Merge StyleElement into HTMLStyleElement.

sky/engine/core/html/HTMLStyleElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2010 Apple 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 SKY_ENGINE_CORE_HTML_HTMLSTYLEELEMENT_H_
 #define SKY_ENGINE_CORE_HTML_HTMLSTYLEELEMENT_H_
 
-#include "sky/engine/core/dom/StyleElement.h"
+#include "sky/engine/core/css/CSSStyleSheet.h"
 #include "sky/engine/core/html/HTMLElement.h"
+#include "sky/engine/wtf/text/TextPosition.h" 
 
 namespace blink {
 
+class ContainerNode;
+class Document;
+class Element;
 class HTMLStyleElement;
+class TreeScope;
 
-template<typename T> class EventSender;
-typedef EventSender<HTMLStyleElement> StyleEventSender;
-
-class HTMLStyleElement final : public HTMLElement, private StyleElement {
+class HTMLStyleElement final : public HTMLElement {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtr<HTMLStyleElement> create(Document&, bool createdByParser);
     virtual ~HTMLStyleElement();
 
     ContainerNode* scopingNode();
 
-    using StyleElement::sheet;
+    CSSStyleSheet* sheet() const { return m_sheet.get(); }
+
+    const AtomicString& media() const;
+    const AtomicString& type() const;
 
 private:
     HTMLStyleElement(Document&, bool createdByParser);
 
+    void createSheet();
+    void process();
+    void clearSheet();
+
+    void processStyleSheet();
+    void clearDocumentData();
+
     // overload from HTMLElement
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
     virtual void insertedInto(ContainerNode*) override;
     virtual void removedFrom(ContainerNode*) override;
     virtual void childrenChanged(const ChildrenChange&) override;
 
     virtual void finishParsingChildren() override;
 
-    virtual const AtomicString& media() const override;
-    virtual const AtomicString& type() const override;
+    RefPtr<CSSStyleSheet> m_sheet;
+
+    bool m_createdByParser : 1;
+    bool m_loading : 1;
+    bool m_registeredAsCandidate : 1;
+    TextPosition m_startPosition;
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_HTML_HTMLSTYLEELEMENT_H_