Add device policy to enable ephemeral users

Add device policy to enable ephemeral users

This adds a device policy to the protobuf file that will be used to
enable ephemeral users.

BUG=chromium-os:20004
TEST=unit_test *Policy*, chrome builds and runs


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=120620

[use bartfab instead, 2012-01-31 13:06:23]

Hi Julian, here is the policy proto CL for review.

[pastarmovj, 2012-02-01 09:47:23]

LGTM.

[use bartfab instead, 2012-02-01 10:00:32]

Here is an updated patch, moving the new setting to the correct protobuf file.

[use bartfab instead, 2012-02-01 10:12:25]

+binzhao for the server side.

[binzhao, 2012-02-02 01:27:56]

Thanks for the heads up. Can you explain what an ephemeral user is ?

On Wed, Feb 1, 2012 at 2:12 AM, <bartfab@google.com> wrote:

> +binzhao for the server side.
>
>
https://chromiumcodereview.**appspot.com/9104038/<https://chromiumcodereview....
>



-- 
regards,
Bin

[use bartfab instead, 2012-02-02 09:29:14]

Ephemeral users are users whose visit leaves no persistent data behind: no pods
on the login screen, no cryptohomes.

Here is the bug: http://crosbug.com/20004
And here is a design doc: http://goo.gl/wTPEb

[commit-bot: I haz the power, 2012-02-06 10:36:45]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/bartfab@google.com/9104038/3002

[commit-bot: I haz the power, 2012-02-06 12:49:13]

Try job failure for 9104038-3002 (retry) (retry) on mac_rel for step
"test_shell_tests".
It's a second try, previously, step "test_shell_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[commit-bot: I haz the power, 2012-02-06 13:40:26]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/bartfab@google.com/9104038/3002

[use bartfab instead, 2012-02-06 16:54:51]

Heya

I keep running into the same failure, repeatedly, with different CLs.
None of my CLs go anyhwere near UA spoofing/WebKit code at all and
yet, some UA spoofing test on Mac fails. Could you check whether this
is a trybot issue?

Thanks,
- Bartosz

[commit-bot: I haz the power, 2012-02-06 17:07:30]

Try job failure for 9104038-3002 (retry) (retry) (retry) on mac_rel for steps
"test_shell_tests, ui_tests".
It's a second try, previously, steps "test_shell_tests, ui_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[commit-bot: I haz the power, 2012-02-06 17:18:12]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/bartfab@google.com/9104038/3002

[commit-bot: I haz the power, 2012-02-06 21:56:43]

Change committed as 120620