Fixes https://code.google.com/p/google-caja/issues/detail?id=1829 https://codereview.appspot.com/12446043
Fixes https://code.google.com/p/google-caja/issues/detail?id=1829
https://codereview.appspot.com/12446043

Classifies INCREMENT_IGNORES_FROZEN as either SAFE_SPEC_VIOLATION or
NOT_OCAP_SAFE depending on the availability of mitigation.

R=felix8a@gmail.com


git-svn-id: eb21526166532bd3afc2c1499c0cf105ce815f5a@5525 360991c0-9f3b-0410-ba87-8b362a00edf4

initaldk/caja,cepm-nate/caja,wishabi/caja-1,initaldk/caja,jasvir/caja,googlearchive/caja,jasvir/caja,googlearchive/caja,googlearchive/caja,jasvir/caja,wishabi/caja-1,initaldk/caja,jasvir/caja,googlearchive/caja,wishabi/caja-1,initaldk/caja,googlearchive/caja,initaldk/caja,jasvir/caja,wishabi/caja-1,cepm-nate/caja,cepm-nate/caja,cepm-nate/caja,wishabi/caja-1,wishabi/caja-1,jasvir/caja,initaldk/caja,cepm-nate/caja,googlearchive/caja,cepm-nate/caja