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

Source/core/css/CSSLocalNameToLowerMaps.cpp

Index: Source/core/css/CSSLocalNameToLowerMaps.cpp
diff --git a/Source/core/css/CSSLocalNameToLowerMaps.cpp b/Source/core/css/CSSLocalNameToLowerMaps.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..0687ec7f57d4bfface01141b1cb3af415d22e3a7
--- /dev/null
+++ b/Source/core/css/CSSLocalNameToLowerMaps.cpp
@@ -0,0 +1,38 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "core/css/CSSLocalNameToLowerMaps.h"
+
+#include "core/SVGNames.h"
+
+namespace blink {
+
+namespace CSSLocalNameToLowerMaps {
+
+HashMap<AtomicString, AtomicString>* s_elementToLowerMap = nullptr;
+HashMap<AtomicString, AtomicString>* s_attributeToLowerMap = nullptr;
+
+void buildElementToLowerMap()
+{
+    ASSERT(!s_elementToLowerMap);
+    s_elementToLowerMap = new HashMap<AtomicString, AtomicString>;
+    OwnPtr<const SVGQualifiedName*[]> svgTags = SVGNames::getSVGTags();
+    for (size_t i = 0; i < SVGNames::SVGTagsCount; ++i) {
+        AtomicString localName = svgTags[i]->localName();
+        AtomicString localNameLower = localName.lower();
+        if (localName != localNameLower)
+            s_elementToLowerMap->set(localName, localNameLower);
+    }
+}
+
+void buildAttributeToLowerMap()
+{
+    ASSERT(!s_attributeToLowerMap);
+    s_attributeToLowerMap = new HashMap<AtomicString, AtomicString>;
+}
+
+} // namespace CSSElementNameMap
+
+} // namespace blink