This code path is not actually used yet, so the typo wasn't caught earlier.

Also make sure access tokens have 'str' type, not 'unicode'.

R=nodir@chromium.org
BUG=356813

Review URL: https://codereview.chromium.org/1082133002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@294789 0039d316-1c4b-4281-b951-d872f2087c98