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chromium/chrome/test/data/devtools/coverage.html 

<html>
<head><title>Title Of Coverage Awesomeness</title></head>
<body>This page has a runTests() function.</body>
<script>
document.title = 'title.READY';
function runTests() {
  if (window.domAutomationController)
    window.domAutomationController.send('window.domAutomationController.DONE');
  if (chrome && chrome.test)
    chrome.test.send('chrome.test.send.DONE');
  console.log('console.log.DONE');
  document.title = 'title.DONE';
}
</script>
</html>