iframe-content-with-swf-plugin.html

<html>
<body>
   <object>
       <param name="movie" value="simple_blank.swf">
       <embed src="simple_blank.swf"></embed>
    </object>
</body>
</html>

chromium/third_party/blink/web_tests/plugins/resources/iframe-content-with-swf-plugin.html