Add histogram enum for third party VPN

Add histogram enum for third party VPN

This is now plumbed up in shill; update histograms.xml to match.

BUG=486182
TEST=trybots

Committed: https://crrev.com/2e1f6e2dccc30684e13361f76b451a5b179ba173
Cr-Commit-Position: refs/heads/master@{#434895}

[Kevin Cernekee, 2016-11-29 00:21:38]

cernekee@chromium.org changed reviewers:
+ isherman@chromium.org

[Ilya Sherman, 2016-11-29 03:06:14]

lgtm

[Kevin Cernekee, 2016-11-29 03:18:09]

The CQ bit was checked by cernekee@chromium.org

[commit-bot: I haz the power, 2016-11-29 03:18:37]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-29 04:43:58]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1480389489808490, "parent_rev":
"f180629fbf00296dd87d3c9f7c78f2db89be6d35", "commit_rev":
"8db4c19d6ad04a0106f34071a007ab7efc7b7909"}

[commit-bot: I haz the power, 2016-11-29 04:44:27]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-29 04:46:35]

Description was changed from

==========
Add histogram enum for third party VPN

This is now plumbed up in shill; update histograms.xml to match.

BUG=486182
TEST=trybots
==========

to

==========
Add histogram enum for third party VPN

This is now plumbed up in shill; update histograms.xml to match.

BUG=486182
TEST=trybots

Committed: https://crrev.com/2e1f6e2dccc30684e13361f76b451a5b179ba173
Cr-Commit-Position: refs/heads/master@{#434895}
==========

[commit-bot: I haz the power, 2016-11-29 04:46:35]

Patchset 1 (id:??) landed as
https://crrev.com/2e1f6e2dccc30684e13361f76b451a5b179ba173
Cr-Commit-Position: refs/heads/master@{#434895}