Support type selector for camel-cased SVG elements in HTML.

Source/core/dom/SelectorQuery.cpp

 /*
  * Copyright (C) 2011, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 158 matching lines @@
     for (Element& element : ElementTraversal::descendantsOf(rootNode)) {
         if (element.hasClass() && element.classNames().contains(className)) {
             SelectorQueryTrait::appendElement(output, element);
             if (SelectorQueryTrait::shouldOnlyMatchFirstElement)
                 return;
         }
     }
 }
 
 template <typename SelectorQueryTrait>
-void SelectorDataList::collectElementsByTagName(ContainerNode& rootNode, const QualifiedName& tagName,  typename SelectorQueryTrait::OutputType& output) const
+void SelectorDataList::collectElementsByTagName(ContainerNode& rootNode, const CSSSelector& tagSelector, typename SelectorQueryTrait::OutputType& output) const
 {
     for (Element& element : ElementTraversal::descendantsOf(rootNode)) {
-        if (SelectorChecker::tagMatches(element, tagName)) {
+        if (SelectorChecker::tagMatches(element, tagSelector)) {
             SelectorQueryTrait::appendElement(output, element);
             if (SelectorQueryTrait::shouldOnlyMatchFirstElement)
                 return;
         }
     }
 }
 
 inline bool SelectorDataList::canUseFastQuery(const ContainerNode& rootNode) const
 {
     return m_selectors.size() == 1 && !m_crossesTreeBoundary && rootNode.inDocument() && !rootNode.document().inQuirksMode();
@@ skipping 268 matching lines @@
         return;
     }
 
     if (!firstSelector.tagHistory()) {
         // Fast path for querySelector*('.foo'), and querySelector*('div').
         switch (firstSelector.match()) {
         case CSSSelector::Class:
             collectElementsByClassName<SelectorQueryTrait>(rootNode, firstSelector.value(), output);
             return;
         case CSSSelector::Tag:
-            collectElementsByTagName<SelectorQueryTrait>(rootNode, firstSelector.tagQName(), output);
+            collectElementsByTagName<SelectorQueryTrait>(rootNode, firstSelector, output);
             return;
         default:
             break; // If we need another fast path, add here.
         }
     }
 
     findTraverseRootsAndExecute<SelectorQueryTrait>(rootNode, output);
 }
 
 PassOwnPtr<SelectorQuery> SelectorQuery::adopt(CSSSelectorList& selectorList)
@@ skipping 53 matching lines @@
 
     return m_entries.add(selectors, SelectorQuery::adopt(selectorList)).storedValue->value.get();
 }
 
 void SelectorQueryCache::invalidate()
 {
     m_entries.clear();
 }
 
 }