Merge 104275 - Fix a crash by importing an element of which local name ends with ":input".

Source/WebCore/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
@@ skipping 817 matching lines @@
     case CDATA_SECTION_NODE:
         return createCDATASection(importedNode->nodeValue(), ec);
     case ENTITY_REFERENCE_NODE:
         return createEntityReference(importedNode->nodeName(), ec);
     case PROCESSING_INSTRUCTION_NODE:
         return createProcessingInstruction(importedNode->nodeName(), importedNode->nodeValue(), ec);
     case COMMENT_NODE:
         return createComment(importedNode->nodeValue());
     case ELEMENT_NODE: {
         Element* oldElement = static_cast<Element*>(importedNode);
-        RefPtr<Element> newElement = createElementNS(oldElement->namespaceURI(), oldElement->tagQName().toString(), ec);
-                    
+        // FIXME: The following check might be unnecessary. Is it possible that
+        // oldElement has mismatched prefix/namespace?
+        if (hasPrefixNamespaceMismatch(oldElement->tagQName())) {
+            ec = NAMESPACE_ERR;
+            return 0;
+        }
+        RefPtr<Element> newElement = createElement(oldElement->tagQName(), ec);
         if (ec)
             return 0;
 
         NamedNodeMap* attrs = oldElement->attributes(true);
         if (attrs) {
             unsigned length = attrs->length();
             for (unsigned i = 0; i < length; i++) {
                 Attribute* attr = attrs->attributeItem(i);
                 newElement->setAttribute(attr->name(), attr->value().impl(), ec);
                 if (ec)
@@ skipping 4367 matching lines @@
 
     NodeListsNodeData* data = rareData()->nodeLists();
 
     String localTypeNames = typeNames.isNull() ? String("http://webkit.org/microdata/undefinedItemType") : typeNames;
     ASSERT_UNUSED(list, list == data->m_microDataItemListCache.get(localTypeNames));
     data->m_microDataItemListCache.remove(localTypeNames);
 }
 #endif
 
 } // namespace WebCore