Remove SiblingRuleHelper

Source/core/dom/shadow/ShadowRootRareData.h

Index: Source/core/dom/shadow/ShadowRootRareData.h
diff --git a/Source/core/dom/shadow/ShadowRootRareData.h b/Source/core/dom/shadow/ShadowRootRareData.h
index cbc85d01c40cbd29e8067cd4dde598eea76b46ef..26f5eb51b70bd10f99bf12287f33a99ce80a8ff7 100644
--- a/Source/core/dom/shadow/ShadowRootRareData.h
+++ b/Source/core/dom/shadow/ShadowRootRareData.h
@@ -43,12 +43,6 @@ public:
         : m_descendantShadowElementCount(0)
         , m_descendantContentElementCount(0)
         , m_childShadowRootCount(0)
-        , m_childrenAffectedByDirectAdjacentRules(false)
-        , m_childrenAffectedByIndirectAdjacentRules(false)
-        , m_childrenAffectedByForwardPositionalRules(false)
-        , m_childrenAffectedByBackwardPositionalRules(false)
-        , m_childrenAffectedByFirstChildRules(false)
-        , m_childrenAffectedByLastChildRules(false)
     {
     }
 
@@ -76,24 +70,6 @@ public:
     StyleSheetList* styleSheets() { return m_styleSheetList.get(); }
     void setStyleSheets(PassRefPtrWillBeRawPtr<StyleSheetList> styleSheetList) { m_styleSheetList = styleSheetList; }
 
-    bool childrenAffectedByDirectAdjacentRules() const { return m_childrenAffectedByDirectAdjacentRules; }
-    void setChildrenAffectedByDirectAdjacentRules(bool value) { m_childrenAffectedByDirectAdjacentRules = value; }
-
-    bool childrenAffectedByIndirectAdjacentRules() const { return m_childrenAffectedByIndirectAdjacentRules; }
-    void setChildrenAffectedByIndirectAdjacentRules(bool value) { m_childrenAffectedByIndirectAdjacentRules = value; }
-
-    bool childrenAffectedByForwardPositionalRules() const { return m_childrenAffectedByForwardPositionalRules; }
-    void setChildrenAffectedByForwardPositionalRules(bool value) { m_childrenAffectedByForwardPositionalRules = value; }
-
-    bool childrenAffectedByBackwardPositionalRules() const { return m_childrenAffectedByBackwardPositionalRules; }
-    void setChildrenAffectedByBackwardPositionalRules(bool value) { m_childrenAffectedByBackwardPositionalRules = value; }
-
-    bool childrenAffectedByFirstChildRules() const { return m_childrenAffectedByFirstChildRules; }
-    void setChildrenAffectedByFirstChildRules(bool value) { m_childrenAffectedByFirstChildRules = value; }
-
-    bool childrenAffectedByLastChildRules() const { return m_childrenAffectedByLastChildRules; }
-    void setChildrenAffectedByLastChildRules(bool value) { m_childrenAffectedByLastChildRules = value; }
-
 private:
     RefPtr<HTMLShadowElement> m_shadowInsertionPointOfYoungerShadowRoot;
     unsigned m_descendantShadowElementCount;
@@ -101,13 +77,6 @@ private:
     unsigned m_childShadowRootCount;
     Vector<RefPtr<InsertionPoint> > m_descendantInsertionPoints;
     RefPtrWillBePersistent<StyleSheetList> m_styleSheetList;
-
-    unsigned m_childrenAffectedByDirectAdjacentRules : 1;
-    unsigned m_childrenAffectedByIndirectAdjacentRules : 1;
-    unsigned m_childrenAffectedByForwardPositionalRules : 1;
-    unsigned m_childrenAffectedByBackwardPositionalRules : 1;
-    unsigned m_childrenAffectedByFirstChildRules : 1;
-    unsigned m_childrenAffectedByLastChildRules : 1;
 };
 
 inline void ShadowRootRareData::didAddInsertionPoint(InsertionPoint* point)