getElementsByTagName() should take a qualifiedName in parameter

third_party/WebKit/Source/core/html/CollectionType.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights
  * reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 39 matching lines @@
   kFormControls,
 
   // Named HTMLCollection types cached in the document.
   kWindowNamedItems,
   kDocumentNamedItems,
 
   // Named HTMLCollection types cached in elements.
   kClassCollectionType,
   kTagCollectionType,
   kHTMLTagCollectionType,
+  kTagCollectionNSType,
 
   // Live NodeList.
   kNameNodeListType,
   kRadioNodeListType,
   kRadioImgNodeListType,
   kLabelsNodeListType,
 };
 
 static const CollectionType kFirstNamedCollectionType = kWindowNamedItems;
 static const CollectionType kFirstLiveNodeListType = kNameNodeListType;
 
 inline bool IsUnnamedHTMLCollectionType(CollectionType type) {
   return type < kFirstNamedCollectionType;
 }
 
 inline bool IsHTMLCollectionType(CollectionType type) {
   return type < kFirstLiveNodeListType;
 }
 
 inline bool IsLiveNodeListType(CollectionType type) {
   return type >= kFirstLiveNodeListType;
 }
 
 }  // namespace blink
 
 #endif