Otherwise the following presubmit checks where never called.

TBR=nsylvain
BUG=
TEST=fixes unit tests

Review URL: http://codereview.chromium.org/5995003

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@69844 0039d316-1c4b-4281-b951-d872f2087c98