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+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" />
+        <title>user timing entry type</title>
+        <link rel="author" title="Intel" href="http://www.intel.com/" />
+        <link rel="help" href="http://www.w3.org/TR/user-timing/#extensions-performance-interface"/>
+        <script src="/resources/testharness.js"></script>
+        <script src="/resources/testharnessreport.js"></script>
+        <script src="resources/webperftestharness.js"></script>
+        <script src="resources/webperftestharnessextension.js"></script>
+    </head>
+    <body>
+        <h1>Description</h1>
+        <p>This test validates the user timing entry type, PerformanceMark and PerformanceMeasure.</p>
+
+        <div id="log"></div>
+        <script>
+        var context = new PerformanceContext(window.performance);
+        context.mark('mark');
+        context.measure('measure');
+        var mark_entry = context.getEntriesByName('mark')[0];
+        var measure_entry = context.getEntriesByName('measure')[0];
+
+        test_equals(Object.prototype.toString.call(mark_entry), '[object PerformanceMark]', 'Class name of mark entry should be PerformanceMark.');
+        test_equals(Object.prototype.toString.call(measure_entry), '[object PerformanceMeasure]', 'Class name of measure entry should be PerformanceMeasure.');
+        </script>
+    </body>
+</html>