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

Source/core/dom/SelectorQuery.cpp

Index: Source/core/dom/SelectorQuery.cpp
diff --git a/Source/core/dom/SelectorQuery.cpp b/Source/core/dom/SelectorQuery.cpp
index 6a5d428934d4258c09430f6dfa83f20f63bad1f4..71f709c09e718db0f1e8167245dc03c09a6fef54 100644
--- a/Source/core/dom/SelectorQuery.cpp
+++ b/Source/core/dom/SelectorQuery.cpp
@@ -175,6 +175,17 @@ void SelectorDataList::collectElementsByClassName(ContainerNode& rootNode, const
     }
 }
 
+inline bool tagNameMatches(const QualifiedName& tagName, const Element& element)

[esprehn, 2015/05/07 02:21:27]

Can you add a comment for what this is about? (here and in the other place.

Also maybe matchesTagName so the functions are consistent.

[rune, 2015/05/07 07:59:48]

Done.
Done.

+{
+    if (tagName == anyQName())
+        return true;
+    if (element.hasLocalName(tagName.localName()))
+        return true;
+    if (element.isHTMLElement() || !element.document().isHTMLDocument())
+        return false;
+    return equalIgnoringCase(tagName.localName(), element.localName());
+}
+
 template <typename SelectorQueryTrait>
 void SelectorDataList::collectElementsByTagName(ContainerNode& rootNode, const QualifiedName& tagName,  typename SelectorQueryTrait::OutputType& output) const
 {
@@ -182,7 +193,7 @@ void SelectorDataList::collectElementsByTagName(ContainerNode& rootNode, const Q
         // querySelector*() doesn't allow namespaces and throws before it gets
         // here so we can ignore them.
         ASSERT(tagName.namespaceURI() == starAtom);
-        if (tagName == anyQName() || element.hasLocalName(tagName.localName())) {
+        if (tagNameMatches(tagName, element)) {
             SelectorQueryTrait::appendElement(output, element);
             if (SelectorQueryTrait::shouldOnlyMatchFirstElement)
                 return;