Oilpan: add transition types to shadow DOM supporting objects.

Source/core/html/HTMLContentElement.h

Index: Source/core/html/HTMLContentElement.h
diff --git a/Source/core/html/HTMLContentElement.h b/Source/core/html/HTMLContentElement.h
index f1c0fe436365748c865dfd5258dc0938575931c6..8bf924020a475a819ce9ea8065e1c0d985da1829 100644
--- a/Source/core/html/HTMLContentElement.h
+++ b/Source/core/html/HTMLContentElement.h
@@ -44,7 +44,7 @@ public:
 
     virtual bool canAffectSelector() const OVERRIDE { return true; }
 
-    bool canSelectNode(const Vector<Node*, 32>& siblings, int nth) const;
+    bool canSelectNode(const WillBeHeapVector<RawPtrWillBeMember<Node>, 32>& siblings, int nth) const;
 
     const CSSSelectorList& selectorList() const;
     bool isSelectValid() const;
@@ -57,7 +57,7 @@ private:
     bool validateSelect() const;
     void parseSelect();
 
-    bool matchSelector(const Vector<Node*, 32>& siblings, int nth) const;
+    bool matchSelector(const WillBeHeapVector<RawPtrWillBeMember<Node>, 32>& siblings, int nth) const;
 
     bool m_shouldParseSelect;
     bool m_isValidSelector;
@@ -79,7 +79,7 @@ inline bool HTMLContentElement::isSelectValid() const
     return m_isValidSelector;
 }
 
-inline bool HTMLContentElement::canSelectNode(const Vector<Node*, 32>& siblings, int nth) const
+inline bool HTMLContentElement::canSelectNode(const WillBeHeapVector<RawPtrWillBeMember<Node>, 32>& siblings, int nth) const
 {
     if (m_select.isNull() || m_select.isEmpty())
         return true;