Add new demo applications to the public session white list.

Add new demo applications to the public session white list.

They are demo applications introducing popular apps/services. The new demos use
the same template with existing demo apps. Text/images are replaced for each new
application.

BUG=446429
TEST=None

Committed: https://crrev.com/4f26a767e6da1ea224665b400f28a0f1bde81cad
Cr-Commit-Position: refs/heads/master@{#318401}

[hirono, 2015-02-20 09:58:14]

hirono@chromium.org changed reviewers:
+ asargent@chromium.org

[hirono, 2015-02-20 09:58:42]

PTAL, thanks!

[hirono, 2015-02-24 02:06:36]

On 2015/02/20 09:58:42, hirono wrote:
> PTAL, thanks!

friendly ping

[asargent_no_longer_on_chrome, 2015-02-26 19:22:54]

lgtm

apologies for delay, I was on vacation and then out sick for several days

[hirono, 2015-02-27 03:19:26]

The CQ bit was checked by hirono@chromium.org

[commit-bot: I haz the power, 2015-02-27 03:20:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/941273002/1

[hirono, 2015-02-27 03:20:52]

On 2015/02/26 19:22:54, Antony Sargent wrote:
> lgtm
> 
> apologies for delay, I was on vacation and then out sick for several days

Oh, take care. And thank you for reviewing!

[commit-bot: I haz the power, 2015-02-27 04:00:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-27 04:01:13]

Patchset 1 (id:??) landed as
https://crrev.com/4f26a767e6da1ea224665b400f28a0f1bde81cad
Cr-Commit-Position: refs/heads/master@{#318401}

[asargent_no_longer_on_chrome, 2015-03-06 18:38:39]

lgtm