getElementsByTagName() should take a qualifiedName in parameter

third_party/WebKit/Source/core/dom/TagCollection.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * 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
@@ skipping 12 matching lines @@
 
 #include "core/dom/TagCollection.h"
 
 #include "core/dom/NodeRareData.h"
 #include "platform/wtf/Assertions.h"
 
 namespace blink {
 
 TagCollection::TagCollection(ContainerNode& root_node,
                              CollectionType type,
-                             const AtomicString& namespace_uri,
-                             const AtomicString& local_name)
+                             const AtomicString& qualified_name)
+    : HTMLCollection(root_node, type, kDoesNotOverrideItemAfter),
+      qualified_name_(qualified_name) {
+  DCHECK_NE(qualified_name, g_star_atom);
+}
+
+TagCollection::~TagCollection() {}
+
+bool TagCollection::ElementMatches(const Element& test_node) const {
+  return qualified_name_ == test_node.TagQName().ToString();

[fs, 2017/05/08 14:20:36]

See comment in HTMLTagCollection.

+}
+
+TagCollectionNS::TagCollectionNS(ContainerNode& root_node,
+                                 CollectionType type,
+                                 const AtomicString& namespace_uri,
+                                 const AtomicString& local_name)
     : HTMLCollection(root_node, type, kDoesNotOverrideItemAfter),
       namespace_uri_(namespace_uri),
       local_name_(local_name) {
   DCHECK(namespace_uri_.IsNull() || !namespace_uri_.IsEmpty());
 }
 
-TagCollection::~TagCollection() {}
+TagCollectionNS::~TagCollectionNS() {}
 
-bool TagCollection::ElementMatches(const Element& test_node) const {
+bool TagCollectionNS::ElementMatches(const Element& test_node) const {
   // Implements
   // https://dom.spec.whatwg.org/#concept-getelementsbytagnamens
   if (local_name_ != g_star_atom && local_name_ != test_node.localName())
     return false;
 
   return namespace_uri_ == g_star_atom ||
          namespace_uri_ == test_node.namespaceURI();
 }
 
 }  // namespace blink