Remove the CSSOM.

sky/engine/core/css/StyleKeyframe.h

 /*
  * Copyright (C) 2007, 2008, 2012 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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, 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 APPLE COMPUTER, 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 SKY_ENGINE_CORE_CSS_CSSKEYFRAMERULE_H_
-#define SKY_ENGINE_CORE_CSS_CSSKEYFRAMERULE_H_
+#ifndef SKY_ENGINE_CORE_CSS_STYLEKEYFRAME_H_
+#define SKY_ENGINE_CORE_CSS_STYLEKEYFRAME_H_
 
-#include "sky/engine/core/css/CSSRule.h"
+#include "sky/engine/wtf/Forward.h"
+#include "sky/engine/wtf/OwnPtr.h"
+#include "sky/engine/wtf/RefCounted.h"
+#include "sky/engine/wtf/Vector.h"
+#include "sky/engine/wtf/text/WTFString.h"
 
 namespace blink {
 
 class CSSKeyframesRule;
 class CSSParserValueList;
-class CSSStyleDeclaration;
 class MutableStylePropertySet;
 class StylePropertySet;
-class StyleRuleCSSStyleDeclaration;
 
 class StyleKeyframe final : public RefCounted<StyleKeyframe> {
     WTF_MAKE_FAST_ALLOCATED;
 public:
     static PassRefPtr<StyleKeyframe> create()
     {
         return adoptRef(new StyleKeyframe());
     }
     ~StyleKeyframe();
 
@@ skipping 16 matching lines @@
 
 private:
     StyleKeyframe();
 
     RefPtr<StylePropertySet> m_properties;
     // These are both calculated lazily. Either one can be set, which invalidates the other.
     mutable String m_keyText;
     mutable OwnPtr<Vector<double> > m_keys;
 };
 
-class CSSKeyframeRule final : public CSSRule {
-public:
-    virtual ~CSSKeyframeRule();
-
-    virtual CSSRule::Type type() const override { return KEYFRAME_RULE; }
-    virtual String cssText() const override { return m_keyframe->cssText(); }
-    virtual void reattach(StyleRuleBase*) override;
-
-    String keyText() const { return m_keyframe->keyText(); }
-    void setKeyText(const String& s) { m_keyframe->setKeyText(s); }
-
-    CSSStyleDeclaration* style() const;
-
-private:
-    CSSKeyframeRule(StyleKeyframe*, CSSKeyframesRule* parent);
-
-    RefPtr<StyleKeyframe> m_keyframe;
-    mutable RefPtr<StyleRuleCSSStyleDeclaration> m_propertiesCSSOMWrapper;
-
-    friend class CSSKeyframesRule;
-};
-
-DEFINE_CSS_RULE_TYPE_CASTS(CSSKeyframeRule, KEYFRAME_RULE);
-
 } // namespace blink
 
-#endif  // SKY_ENGINE_CORE_CSS_CSSKEYFRAMERULE_H_
+#endif  // SKY_ENGINE_CORE_CSS_STYLEKEYFRAME_H_