Make sure the rootNode of a LiveNodeListBase is always a ContainerNode

Source/core/html/HTMLAllCollection.cpp

Index: Source/core/html/HTMLAllCollection.cpp
diff --git a/Source/core/html/HTMLAllCollection.cpp b/Source/core/html/HTMLAllCollection.cpp
index 1afd07eb9175fa1ba54e75f360de0239b6d53f22..9af8d2baa13ae08d3af21fe6a94d51334d2ead0e 100644
--- a/Source/core/html/HTMLAllCollection.cpp
+++ b/Source/core/html/HTMLAllCollection.cpp
@@ -31,12 +31,12 @@
 
 namespace WebCore {
 
-PassRefPtr<HTMLAllCollection> HTMLAllCollection::create(Node* node, CollectionType type)
+PassRefPtr<HTMLAllCollection> HTMLAllCollection::create(ContainerNode* node, CollectionType type)
 {
     return adoptRef(new HTMLAllCollection(node, type));
 }
 
-HTMLAllCollection::HTMLAllCollection(Node* node, CollectionType type)
+HTMLAllCollection::HTMLAllCollection(ContainerNode* node, CollectionType type)
     : HTMLCollection(node, type, DoesNotOverrideItemAfter)
 {
     ScriptWrappable::init(this);