frameset-with-stacking-contexts.html

<!doctype HTML>
<!-- Test that the frame is not painted twice. This test passes if it does not crash. -->
 <frameset>
  <frame src="resources/subframe.html" style="opacity: 0.6"/>
</frameset>

chromium/third_party/blink/web_tests/paint/frames/frameset-with-stacking-contexts.html