Update policy presubmit check after two policies were renamed

The policies related to Drive were renamed from GData* to Drive*. This
CL updates the policy presubmit check accordingly.

BUG=None

Review URL: https://codereview.chromium.org/11271018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@164041 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed