It seems that this test is failing with the AX_FOCUS_01 audit error.
This happens when running with --enable-features=GuestViewCrossProcessFrames which will make the test show the options page inside an OOPIF-base <extensionoptions> tag. The failure mentions that the iframe in the <extensionsoptions>' shadow root is focusable but obscured or
The current value of the test does end up putting the iframe out of the viewport to the right and has 0 size.
This cl: https://chromium-review.googlesource.com/c/553317/ should have fixed the page to show some options with content but the assertion still fails.
Comment 1 by bugdroid1@chromium.org
, Jul 7 2017