components/test/data/optimization_guide/media_data/video.html

<html>
<head>
  <title>Test page showing a video</title>
</head>
<body>
<video id="video" src="video.webm"></video>
</body>
<script>
  const video = document.getElementById('video');

  // These functions will be called by the browser test.
  function play() {
    video.play();
  }

  function pause() {
    video.pause();
  }

  function setupMetadata() {
    navigator.mediaSession.metadata = new MediaMetadata({
      title: "test title",
      artist: "test artist",
      album: "test album",
    });
  }

  function setupPosition() {
    navigator.mediaSession.setPositionState({
      duration: 10.0,
      position: 5.0,
      playbackRate: 1.0
    });
  }
</script>
</html>