Remove tons of OILPAN.

sky/engine/core/css/CSSPropertySourceData.h

Index: sky/engine/core/css/CSSPropertySourceData.h
diff --git a/sky/engine/core/css/CSSPropertySourceData.h b/sky/engine/core/css/CSSPropertySourceData.h
index 9e8ad5e844fc6d9d25d5e20c89864d370b2cf50f..6866dc05689b30bd8f3857be65cefbc7eeb521e9 100644
--- a/sky/engine/core/css/CSSPropertySourceData.h
+++ b/sky/engine/core/css/CSSPropertySourceData.h
@@ -48,8 +48,6 @@ public:
     SourceRange(unsigned start, unsigned end);
     unsigned length() const;
 
-    void trace(Visitor*) { }
-
     unsigned start;
     unsigned end;
 };
@@ -64,8 +62,6 @@ public:
     String toString() const;
     unsigned hash() const;
 
-    void trace(Visitor* visitor) { visitor->trace(range); }
-
     String name;
     String value;
     bool important;
@@ -80,8 +76,6 @@ struct CSSStyleSourceData : public RefCounted<CSSStyleSourceData> {
         return adoptRef(new CSSStyleSourceData());
     }
 
-    void trace(Visitor* visitor) { visitor->trace(propertyData); }
-
     Vector<CSSPropertySourceData> propertyData;
 };
 
@@ -117,8 +111,6 @@ struct CSSRuleSourceData : public RefCounted<CSSRuleSourceData> {
             styleSourceData = CSSStyleSourceData::create();
     }
 
-    void trace(Visitor*);
-
     Type type;
 
     // Range of the selector list in the enclosing source.