options: small, safe, mergeable fix for bug 281069.

TBR=estade@chromium.org
BUG=281069
TEST=bug repro steps

Review URL: https://codereview.chromium.org/168083003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251590 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251590