Use port 5222 for XMPP connection from Me2Me host

Use port 5222 for XMPP connection from Me2Me host.

Connection on port 443 may be redirected through proxy. Proxied connections do not work in the service process
(see bug 467960). This is a temporary workaround for that
issue.

BUG=464044, 467960
Committed: https://crrev.com/0c619881fcd09e4d17b70b11c353b3d5e5af144b
Cr-Commit-Position: refs/heads/master@{#321042}

[Sergey Ulanov, 2015-03-17 21:00:00]

Patchset #2 (id:20001) has been deleted

[Sergey Ulanov, 2015-03-17 21:00:12]

sergeyu@chromium.org changed reviewers:
+ rmsousa@chromium.org

[rmsousa, 2015-03-17 21:09:34]

lgtm

[Sergey Ulanov, 2015-03-18 00:25:44]

The CQ bit was checked by sergeyu@chromium.org

[commit-bot: I haz the power, 2015-03-18 00:26:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1015853002/60001

[commit-bot: I haz the power, 2015-03-18 01:16:35]

Committed patchset #3 (id:60001)

[commit-bot: I haz the power, 2015-03-18 01:17:19]

Patchset 3 (id:??) landed as
https://crrev.com/0c619881fcd09e4d17b70b11c353b3d5e5af144b
Cr-Commit-Position: refs/heads/master@{#321042}