dom/performance/tests/test_worker_performance_now.html


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<!-- Any copyright is dedicated to the Public Domain.
   - http://creativecommons.org/publicdomain/zero/1.0/ -->
<!DOCTYPE HTML>
<html>
<head>
  <title>Validate Interfaces Exposed to Workers</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();

var reduceTimePrecisionPrevPrefValue = SpecialPowers.getBoolPref("privacy.reduceTimerPrecision");
SpecialPowers.setBoolPref("privacy.reduceTimerPrecision", false);

var worker = new Worker('test_worker_performance_now.js');
worker.onmessage = function(event) {
  if (event.data.type == 'finish') {
    SpecialPowers.setBoolPref("privacy.reduceTimerPrecision", reduceTimePrecisionPrevPrefValue);
    SimpleTest.finish();

  } else if (event.data.type == 'status') {
    ok(event.data.status, event.data.msg);
  }
}

</script>
</body>
</html>