Have Attr constructor take a Document / Element reference

Source/core/dom/Element.cpp

Index: Source/core/dom/Element.cpp
diff --git a/Source/core/dom/Element.cpp b/Source/core/dom/Element.cpp
index 6cb67b9fa1bd8983a19a7548382bfb5bcafcd199..ca4da46f8bb878c2fb1bed29ef2d031aec7408e2 100644
--- a/Source/core/dom/Element.cpp
+++ b/Source/core/dom/Element.cpp
@@ -336,7 +336,7 @@ PassRefPtr<Attr> Element::detachAttribute(size_t index)
     if (attrNode)
         detachAttrNodeAtIndex(attrNode.get(), index);
     else {
-        attrNode = Attr::create(&document(), attribute->name(), attribute->value());
+        attrNode = Attr::create(document(), attribute->name(), attribute->value());
         removeAttributeInternal(index, NotInSynchronizationOfLazyAttribute);
     }
     return attrNode.release();
@@ -1842,7 +1842,7 @@ PassRefPtr<Attr> Element::setAttributeNode(Attr* attrNode, ExceptionState& es)
         if (oldAttrNode)
             detachAttrNodeFromElementWithValue(oldAttrNode.get(), elementData->attributeItem(index)->value());
         else
-            oldAttrNode = Attr::create(&document(), attrNode->qualifiedName(), elementData->attributeItem(index)->value());
+            oldAttrNode = Attr::create(document(), attrNode->qualifiedName(), elementData->attributeItem(index)->value());
     }
 
     setAttributeInternal(index, attrNode->qualifiedName(), attrNode->value(), NotInSynchronizationOfLazyAttribute);
@@ -2963,7 +2963,7 @@ PassRefPtr<Attr> Element::ensureAttr(const QualifiedName& name)
     AttrNodeList* attrNodeList = ensureAttrNodeListForElement(this);
     RefPtr<Attr> attrNode = findAttrNodeInList(attrNodeList, name);
     if (!attrNode) {
-        attrNode = Attr::create(this, name);
+        attrNode = Attr::create(*this, name);
         treeScope().adoptIfNeeded(attrNode.get());
         attrNodeList->append(attrNode);
     }