Drop a 'document.domain'-related TODO.
Drop a 'document.domain'-related TODO.

Our behavior here matches the HTML specification, as well as Firefox.

R=jochen@chromium.org

Review URL: https://codereview.chromium.org/1233623002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@198693 bbb929c8-8fbe-4397-9dbb-9b2b20218538

Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk