Setting native pointer of custom elements before running constructor.

Source/bindings/dart/DartDOMData.cpp

Index: Source/bindings/dart/DartDOMData.cpp
diff --git a/Source/bindings/dart/DartDOMData.cpp b/Source/bindings/dart/DartDOMData.cpp
index 338988e3e131ca7fed62fff15181365a2c83e878..6f962780020134c21a799cf4194d2d288fc1ea72 100644
--- a/Source/bindings/dart/DartDOMData.cpp
+++ b/Source/bindings/dart/DartDOMData.cpp
@@ -133,25 +133,4 @@ DartCustomElementBinding* DartDOMData::customElementBinding(CustomElementDefinit
     return it->value.get();
 }
 
-void DartDOMData::pushUpgradingCustomElement(Element* element)
-{
-    m_upgradingElements.append(element);
-}
-
-Element* DartDOMData::popUpgradingCustomElement()
-{
-    if (m_upgradingElements.isEmpty()) {
-        return 0;
-    }
-    Element* element = m_upgradingElements.last();
-    m_upgradingElements.removeLast();
-
-    return element;
-}
-
-bool DartDOMData::isUpgradingCustomElement(Element* element)
-{
-    return m_upgradingElements.contains(element);
-}
-
 }