Import TestRunner library into chromium.

content/shell/renderer/test_runner/TestCommon.h

Index: content/shell/renderer/test_runner/TestCommon.h
diff --git a/content/shell/renderer/test_runner/TestCommon.h b/content/shell/renderer/test_runner/TestCommon.h
new file mode 100644
index 0000000000000000000000000000000000000000..5e83c47a5c75079a15d806b7f4e5a3b39367126d
--- /dev/null
+++ b/content/shell/renderer/test_runner/TestCommon.h
@@ -0,0 +1,28 @@
+// Copyright 2013 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.
+
+#ifndef TestCommon_h
+#define TestCommon_h
+
+#include <stdio.h>
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "third_party/WebKit/public/platform/WebCommon.h"
+
+#if defined(WIN32)
+#define snprintf(str, size, ...) _snprintf_s(str, size, size, __VA_ARGS__)
+#endif
+
+namespace WebTestRunner {
+
+inline bool isASCIIAlpha(char ch) { return (ch | 0x20) >= 'a' && (ch | 0x20) <= 'z'; }
+
+inline bool isNotASCIIAlpha(char ch) { return !isASCIIAlpha(ch); }
+
+std::string normalizeLayoutTestURL(const std::string& url);
+
+}
+
+#endif // TestCommon_h