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chromium/third_party/blink/web_tests/paint/invalidation/outline/outline-add-repaint-expected.html 

<!DOCTYPE HTML>
<style>
    body {
        margin: 0;
    }
</style>
<div id="test" style="background-color: green; width: 100px; height: 100px; outline: solid black 10px"></div>
<!-- Tests the repainting of outline when added. -->