Faster WTF::toASCIILower() implementation for 8-bit strings

Source/wtf/ASCIICTypeTest.cpp

Index: Source/wtf/ASCIICTypeTest.cpp
diff --git a/Source/wtf/ASCIICTypeTest.cpp b/Source/wtf/ASCIICTypeTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..5904ba106d5c8a3ec23b962c95be2576717d265e
--- /dev/null
+++ b/Source/wtf/ASCIICTypeTest.cpp
@@ -0,0 +1,20 @@
+// 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 "wtf/ASCIICType.h"
+
+#include <gtest/gtest.h>
+
+namespace WTF {
+
+TEST(ASCIICTypeTest, ASCIICaseFoldTable)
+{
+    LChar symbol = 0xff;
+    while (symbol--) {
+        EXPECT_EQ(toASCIILower<LChar>(symbol), ASCIICaseFoldTable[symbol]);
+    }
+}
+
+}