Revert "Revert "Add default proxy stub as well as login to session_manager_setup""

This reverts commit a0cb57c241dcc23f40313888dc27aca70c80b623.

Review URL: http://codereview.chromium.org/2243001
(cherry picked from commit 98c7808f2694555f2c8ab1d9284e328d4365c7b5)
2 files changed