Add ability to query desktop process for its session ID by the network process

Add ability to query desktop process for its session ID by the network process

This change adds an access right to the Chromoting desktop process on Windows
which allows the network process (running as Local Service) to query its
session ID using its PID.  This is the first change needed to allow the network
service to restrict access to global resources to the Windows session being
remoted.

BUG=591746
Committed: https://crrev.com/4cfe59be5d49919425d676ce63c5d46b40316b64
Cr-Commit-Position: refs/heads/master@{#401738}

[joedow, 2016-06-22 23:15:59]

joedow@chromium.org changed reviewers:
+ sergeyu@chromium.org, zijiehe@chromium.org

[joedow, 2016-06-22 23:16:00]

joedow@chromium.org changed required reviewers:
+ sergeyu@chromium.org

[joedow, 2016-06-22 23:16:00]

This is the first of several changes needed to use the Windows Session ID to
restrict access to the security key IPC channel.

PTAL!

Thanks!
Joe

[Hzj_jie, 2016-06-23 00:08:47]

lgtm

[joedow, 2016-06-23 00:12:54]

I realized that I needed to add the default DACLs for SYSTEM and the BA group. 
This new patchset includes those changes.

[joedow, 2016-06-23 21:13:43]

Ping!

[Sergey Ulanov, 2016-06-23 21:29:58]

lgtm

[joedow, 2016-06-23 21:53:03]

The CQ bit was checked by joedow@chromium.org

[joedow, 2016-06-23 21:53:04]

The patchset sent to the CQ was uploaded after l-g-t-m from zijiehe@chromium.org
Link to the patchset: https://codereview.chromium.org/2085393002/#ps60001
(title: "Fixing the default DACL for the Desktop Process")

[commit-bot: I haz the power, 2016-06-23 21:53:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2085393002/60001

[commit-bot: I haz the power, 2016-06-23 21:59:11]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2016-06-23 22:01:00]

Description was changed from

==========
Add ability to query desktop process for its session ID by the network process

This change adds an access right to the Chromoting desktop process on Windows
which allows the network process (running as Local Service) to query its
session ID using its PID.  This is the first change needed to allow the network
service to restrict access to global resources to the Windows session being
remoted.

BUG=591746
==========

to

==========
Add ability to query desktop process for its session ID by the network process

This change adds an access right to the Chromoting desktop process on Windows
which allows the network process (running as Local Service) to query its
session ID using its PID.  This is the first change needed to allow the network
service to restrict access to global resources to the Windows session being
remoted.

BUG=591746

Committed: https://crrev.com/4cfe59be5d49919425d676ce63c5d46b40316b64
Cr-Commit-Position: refs/heads/master@{#401738}
==========

[commit-bot: I haz the power, 2016-06-23 22:01:01]

Patchset 4 (id:??) landed as
https://crrev.com/4cfe59be5d49919425d676ce63c5d46b40316b64
Cr-Commit-Position: refs/heads/master@{#401738}