Remove the CSSOM.

sky/engine/core/css/StyleRule.h

Index: sky/engine/core/css/StyleRule.h
diff --git a/sky/engine/core/css/StyleRule.h b/sky/engine/core/css/StyleRule.h
index 053ff31e5b2c39b02eae57b959140dc7ba1d8a70..d5dc7b610817f0fb576c71f0921d98503517a8ed 100644
--- a/sky/engine/core/css/StyleRule.h
+++ b/sky/engine/core/css/StyleRule.h
@@ -28,8 +28,6 @@
 
 namespace blink {
 
-class CSSRule;
-class CSSStyleRule;
 class CSSStyleSheet;
 class MutableStylePropertySet;
 class StylePropertySet;
@@ -65,10 +63,6 @@ public:
             destroy();
     }
 
-    // FIXME: There shouldn't be any need for the null parent version.
-    PassRefPtr<CSSRule> createCSSOMWrapper(CSSStyleSheet* parentSheet = 0) const;
-    PassRefPtr<CSSRule> createCSSOMWrapper(CSSRule* parentRule) const;
-
 protected:
     StyleRuleBase(Type type) : m_type(type) { }
     StyleRuleBase(const StyleRuleBase& o) : m_type(o.m_type) { }
@@ -78,8 +72,6 @@ protected:
 private:
     void destroy();
 
-    PassRefPtr<CSSRule> createCSSOMWrapper(CSSStyleSheet* parentSheet, CSSRule* parentRule) const;
-
     unsigned m_type : 5;
 };