Commit Briefs
web: add support for chromium
R=rsc http://codereview.appspot.com/4863043
web: pass $BROWSER as open -a argument on OS X
(Suggestion by Martin Kühl) R=rsc http://codereview.appspot.com/1772044
web: just use "open" on OS X
R=rsc http://codereview.appspot.com/1764045