There is one remaining test to convert here and https://codereview.chromium.org/2717723002/ is the CL for that. It fails on windows and I don't know why. It seems unlikely this test (as is) will ever become a web platform test, so we're not going to do anything about this.
Closing as fixed.
Comment 1 by bugdroid1@chromium.org
, Jan 24 2017