Add support for public account policy to CloudPolicyClient.

BUG=chromium:152937
TEST=Manual, user policy still works.

Review URL: https://codereview.chromium.org/11434053

git-svn-id: http://src.chromium.org/svn/trunk/src/chrome/browser/policy/proto@170991 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
1 file changed