Also allow hidden method access.

http://review.cyanogenmod.org/#/c/49689/ requires the chips library to
need access to hidden methods, so the email app needs access to those
too.

Change-Id: If11c44b99a650f0fab958d37a3cdedc6cee3a317
Merge remote-tracking branch 'upstream/cm-10.2' into cm-10.2