src/third_party/web_platform_tests/vibration/cancel-when-hidden-manual.html - cobalt - Git at Google

 <!DOCTYPE html>
 <meta charset='utf-8'>
 <title>Vibration API: cancel ongoing vibrate() when hidden by switching tab/window</title>
 <link rel='author' title='Intel' href='http://www.intel.com'>
 <link rel='help' href='http://dev.w3.org/2009/dap/vibration/#vibration-interface'>
 <meta name='flags' content='interact'>
 <meta name='assert' content='If the visibilitychange event is dispatched at the Document in a browsing context, cancel the pre-existing instance of the processing vibration patterns algorithm'>
 <style>
   button {
     height: 100px;
     width:  100px;
   }
 </style>

 <h1>Description</h1>
 <p>
   After hitting the button below, your device must vibrate for a short period of time (roughly one
   second). If it vibrates for a longer time (roughly five seconds, it should feel somewhat long) then
   the test has failed.
 </p>
 <button id='vib'>Vibrate!</button>
 <script src='/common/vendor-prefix.js' data-prefixed-objects='[{"ancestors":["navigator"], "name":"vibrate"}]'></script>
 <script>
   var win;

   if (undefined !== navigator.vibrate) {
     document.getElementById('vib').onclick = function () {
       navigator.vibrate(5000);
       setTimeout(function () {
         win = window.open('about:blank', '_blank');
         setTimeout(function() {
           win.close();
         }, 100);
       }, 1000);
     };
   }
 </script>
	<!DOCTYPE html>
	<meta charset='utf-8'>
	<title>Vibration API: cancel ongoing vibrate() when hidden by switching tab/window</title>
	<link rel='author' title='Intel' href='http://www.intel.com'>
	<link rel='help' href='http://dev.w3.org/2009/dap/vibration/#vibration-interface'>
	<meta name='flags' content='interact'>
	<meta name='assert' content='If the visibilitychange event is dispatched at the Document in a browsing context, cancel the pre-existing instance of the processing vibration patterns algorithm'>
	<style>
	button {
	height: 100px;
	width: 100px;
	}
	</style>

	<h1>Description</h1>
	<p>
	After hitting the button below, your device must vibrate for a short period of time (roughly one
	second). If it vibrates for a longer time (roughly five seconds, it should feel somewhat long) then
	the test has failed.
	</p>
	<button id='vib'>Vibrate!</button>
	<script src='/common/vendor-prefix.js' data-prefixed-objects='[{"ancestors":["navigator"], "name":"vibrate"}]'></script>
	<script>
	var win;

	if (undefined !== navigator.vibrate) {
	document.getElementById('vib').onclick = function () {
	navigator.vibrate(5000);
	setTimeout(function () {
	win = window.open('about:blank', '_blank');
	setTimeout(function() {
	win.close();
	}, 100);
	}, 1000);
	};
	}
	</script>