Have HTMLFrameOwnerElement / SubframeLoadingDisabler deal with references

Source/core/dom/ContainerNodeAlgorithms.h

Index: Source/core/dom/ContainerNodeAlgorithms.h
diff --git a/Source/core/dom/ContainerNodeAlgorithms.h b/Source/core/dom/ContainerNodeAlgorithms.h
index a0b7dbe4429a9a46c3e6c54f628fe976285656d9..c3cd3bf821cdc0beb94d3023ffb711b2f14297d4 100644
--- a/Source/core/dom/ContainerNodeAlgorithms.h
+++ b/Source/core/dom/ContainerNodeAlgorithms.h
@@ -313,7 +313,7 @@ inline void ChildFrameDisconnector::disconnectCollectedFrameOwners()
 {
     // Must disable frame loading in the subtree so an unload handler cannot
     // insert more frames and create loaded frames in detached subtrees.
-    SubframeLoadingDisabler disabler(&m_root);
+    SubframeLoadingDisabler disabler(m_root);
 
     for (unsigned i = 0; i < m_frameOwners.size(); ++i) {
         HTMLFrameOwnerElement* owner = m_frameOwners[i].get();