[oilpan] The Node hierarchy should have correct accept method chains

Source/core/dom/ShadowRoot.cpp

Index: Source/core/dom/ShadowRoot.cpp
diff --git a/Source/core/dom/ShadowRoot.cpp b/Source/core/dom/ShadowRoot.cpp
index fe7d3ff09b174147ee7973cc677f241febd5026a..f8f91c97dea6e8ada9f3c3c27e012f5caad1fc5a 100644
--- a/Source/core/dom/ShadowRoot.cpp
+++ b/Source/core/dom/ShadowRoot.cpp
@@ -88,12 +88,6 @@ void ShadowRoot::visitWith(Visitor* visitor) const
     visitor->visit(this, &AcceptTrait<Node>::accept);
 }
 
-void ShadowRoot::acceptHeapVisitor(Visitor* visitor) const
-{
-    DocumentFragment::acceptHeapVisitor(visitor);
-    TreeScope::accept(visitor);
-}
-
 PassRefPtr<Node> ShadowRoot::cloneNode(bool, ExceptionCode& ec)
 {
     ec = DATA_CLONE_ERR;
@@ -259,4 +253,10 @@ void ShadowRoot::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
     info.addMember(m_scopeDistribution, "scopeDistribution");
 }
 
+void ShadowRoot::acceptHeapVisitor(Visitor* visitor) const
+{
+    DocumentFragment::acceptHeapVisitor(visitor);
+    TreeScope::accept(visitor);
+}
+
 }