<!DOCTYPE html> <head> <title>Performance Paint Timing Test: FCP due to loaded video frame</title> </head> <body> <script src="../resources/utils.js"></script> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/common/media.js"></script> <video id="video" autoplay></video> <script> setup({"hide_test_state": true}); promise_test(async t => { assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported."); await new Promise(r => window.addEventListener('load', r)); await assertNoFirstContentfulPaint(t); // Set actual video content to trigger FCP. const video = document.getElementById('video'); video.src = getVideoURI('/media/test'); await new Promise(resolve => { video.oncanplay = resolve; }); await assertFirstContentfulPaint(t); }, 'Video should become contentful when first frame is loaded'); </script> </body> </html>