Node: removedFrom() and insertedInto() should use references.
<https://webkit.org/b/122315>

Reviewed by Anders Carlsson.

ContainerNode* -> ContainerNode&

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@156903 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/WebCore/svg/SVGImageElement.cpp b/Source/WebCore/svg/SVGImageElement.cpp
index 8bbbf24..d85ec6a 100644
--- a/Source/WebCore/svg/SVGImageElement.cpp
+++ b/Source/WebCore/svg/SVGImageElement.cpp
@@ -203,10 +203,10 @@
     }
 }
 
-Node::InsertionNotificationRequest SVGImageElement::insertedInto(ContainerNode* rootParent)
+Node::InsertionNotificationRequest SVGImageElement::insertedInto(ContainerNode& rootParent)
 {
     SVGGraphicsElement::insertedInto(rootParent);
-    if (!rootParent->inDocument())
+    if (!rootParent.inDocument())
         return InsertionDone;
     // Update image loader, as soon as we're living in the tree.
     // We can only resolve base URIs properly, after that!