Have ElementTraversal / NodeTraversal's next() methods take a reference

Source/core/dom/TreeScopeAdopter.cpp

Index: Source/core/dom/TreeScopeAdopter.cpp
diff --git a/Source/core/dom/TreeScopeAdopter.cpp b/Source/core/dom/TreeScopeAdopter.cpp
index 6561b09fe58d81c2ddc0aea865c2f8bc008c8658..366b4af3fa15f793b06ee6ab9733cfd114fc46f2 100644
--- a/Source/core/dom/TreeScopeAdopter.cpp
+++ b/Source/core/dom/TreeScopeAdopter.cpp
@@ -51,7 +51,7 @@ void TreeScopeAdopter::moveTreeToNewScope(Node& root) const
     if (willMoveToNewDocument)
         oldDocument->incDOMTreeVersion();
 
-    for (Node* node = &root; node; node = NodeTraversal::next(node, &root)) {
+    for (Node* node = &root; node; node = NodeTraversal::next(*node, &root)) {
         updateTreeScope(*node);
 
         if (willMoveToNewDocument)
@@ -83,7 +83,7 @@ void TreeScopeAdopter::moveTreeToNewScope(Node& root) const
 
 void TreeScopeAdopter::moveTreeToNewDocument(Node& root, Document& oldDocument, Document* newDocument) const
 {
-    for (Node* node = &root; node; node = NodeTraversal::next(node, &root)) {
+    for (Node* node = &root; node; node = NodeTraversal::next(*node, &root)) {
         moveNodeToNewDocument(*node, oldDocument, newDocument);
         for (ShadowRoot* shadow = node->youngestShadowRoot(); shadow; shadow = shadow->olderShadowRoot())
             moveTreeToNewDocument(*shadow, oldDocument, newDocument);