Mark media/video-autoplay.html and media/media-load-event.html as passing again.

The crash was fixed in Chromium r235221.

BUG=319198
TBR=kinuko

Review URL: https://codereview.chromium.org/58903010

git-svn-id: svn://svn.chromium.org/blink/trunk@162132 bbb929c8-8fbe-4397-9dbb-9b2b20218538