It contradicts the previous changes to enforce codereview.settings.

TEST=new unit test
BUG=none

Review URL: http://codereview.chromium.org/3171026

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@57195 0039d316-1c4b-4281-b951-d872f2087c98