LayoutTests/fast/layoutformattingcontext/block-only/replaced-as-inline-block-simple.html

<!-- webkit-test-runner [ LayoutFormattingContextEnabled=true LayoutFormattingContextIntegrationEnabled=false ] -->
<style>
video {
    display: inline-block;
    width: 100px;
    height: 100px;
    background-color: green;
}
</style>
<video>