Improve documentation for Ozone/Caca

Improve documentation for Ozone/Caca

- Add a link to out-of-tree Ozone/Caca.
- Rewrite a bit explanation to use an old revision.

BUG=None

Committed: https://crrev.com/7fa6daf7733e97f46291bccbbcae580bd071b97e
Cr-Commit-Position: refs/heads/master@{#429607}

[fwang, 2016-11-02 13:52:58]

fwang@igalia.com changed reviewers:
+ rjkroege@chromium.org

[tonikitoo, 2016-11-03 15:33:29]

tonikitoo@igalia.com changed reviewers:
+ tonikitoo@igalia.com

[tonikitoo, 2016-11-03 15:33:30]

non-owner l g t m with one minor nit.

https://codereview.chromium.org/2473713002/diff/20001/docs/ozone_overview.md
File docs/ozone_overview.md (right):

https://codereview.chromium.org/2473713002/diff/20001/docs/ozone_overview.md#...
docs/ozone_overview.md:273: Alternatively, your can try the latest revision
known to work. First, install
s/your/you

[tonikitoo, 2016-11-03 15:49:25]

lgtm

[fwang, 2016-11-03 15:50:00]

The CQ bit was checked by fwang@igalia.com

[commit-bot: I haz the power, 2016-11-03 15:50:29]

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, 2016-11-03 15:50:29]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-03 15:50:30]

No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[not to use - tonikitoo, 2016-11-03 15:54:59]

tonikitoo@chromium.org changed reviewers:
+ tonikitoo@chromium.org

[not to use - tonikitoo, 2016-11-03 15:55:00]

lgtm (from the proper account now)

[fwang, 2016-11-03 15:56:25]

The CQ bit was checked by fwang@igalia.com

[commit-bot: I haz the power, 2016-11-03 15:56:59]

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, 2016-11-03 16:07:34]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-11-03 16:12:01]

Description was changed from

==========
Improve documentation for Ozone/Caca

- Add a link to out-of-tree Ozone/Caca.
- Rewrite a bit explanation to use an old revision.

BUG=None
==========

to

==========
Improve documentation for Ozone/Caca

- Add a link to out-of-tree Ozone/Caca.
- Rewrite a bit explanation to use an old revision.

BUG=None

Committed: https://crrev.com/7fa6daf7733e97f46291bccbbcae580bd071b97e
Cr-Commit-Position: refs/heads/master@{#429607}
==========

[commit-bot: I haz the power, 2016-11-03 16:12:02]

Patchset 3 (id:??) landed as
https://crrev.com/7fa6daf7733e97f46291bccbbcae580bd071b97e
Cr-Commit-Position: refs/heads/master@{#429607}