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chromium/third_party/blink/web_tests/external/wpt/pointerevents/resources/pointerevent_pointerrawupdate_in_pointerlock-iframe.html 

<!doctype html>
<html>
    <head>
        <meta name="viewport" content="width=device-width">
        <link rel="stylesheet" type="text/css" href="../pointerevent_styles.css">
    </head>
    <body>
        <div id="target1"></div>
    </body>
</html>