Make wpa_supplicant D-Bus policy more restrictive.

Restrict 'chronos'/'debugd' access to wpa_supplicant's D-Bus interfaces.

BUG=chromium-os:38802
TEST=Build image, connect to open WiFi, connect to secure WiFi.
TEST=Check debug info in chrome:system.

Change-Id: Ia9af1f957d9277ececf0af4c7c301e3b062027fc
Reviewed-on: https://gerrit.chromium.org/gerrit/43289
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Tested-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
1 file changed