Remove resetStyleInheritance.

Source/core/dom/NodeRenderingTraversal.h

Index: Source/core/dom/NodeRenderingTraversal.h
diff --git a/Source/core/dom/NodeRenderingTraversal.h b/Source/core/dom/NodeRenderingTraversal.h
index 2d96b2595d1e8d4e29d81e72a7c8b1e03207c8f0..0a0bd9c13e5aef4764f35e7f2dfabeb50a947e89 100644
--- a/Source/core/dom/NodeRenderingTraversal.h
+++ b/Source/core/dom/NodeRenderingTraversal.h
@@ -40,24 +40,19 @@ class ParentDetails {
 public:
     ParentDetails()
         : m_insertionPoint(0)
-        , m_resetStyleInheritance(false)
     { }
 
     const InsertionPoint* insertionPoint() const { return m_insertionPoint; }
-    bool resetStyleInheritance() const { return m_resetStyleInheritance; }
 
     void didTraverseInsertionPoint(const InsertionPoint*);
-    void didTraverseShadowRoot(const ShadowRoot*);
 
     bool operator==(const ParentDetails& other)
     {
-        return m_insertionPoint == other.m_insertionPoint
-            && m_resetStyleInheritance == other.m_resetStyleInheritance;
+        return m_insertionPoint == other.m_insertionPoint;
     }
 
 private:
     const InsertionPoint* m_insertionPoint;
-    bool m_resetStyleInheritance;
 };
 
 ContainerNode* parent(const Node*);