Add a group id to PwsResult

Add a group id to PwsResult

A group id is an identifier that associates URLs into buckets.  (i.e.,
URLs from the same domain with the same title might have the same group
id).  In anticipation of the PWS sending Chrome a group id, this change
adds a placeholder to our PwsResult data structure.

BUG=633715
Committed: https://crrev.com/df58d62bc0bff46e73ffde6cd3479efd5009ad5e
Cr-Commit-Position: refs/heads/master@{#409639}

[cco3, 2016-08-02 21:17:59]

cco3@chromium.org changed reviewers:
+ mattreynolds@chromium.org

[cco3, 2016-08-03 18:25:20]

Hi Matt, could you please take a look at this?

[mattreynolds, 2016-08-03 18:29:58]

lgtm

[cco3, 2016-08-03 21:10:51]

cco3@chromium.org changed reviewers:
+ dfalcantara@chromium.org

[cco3, 2016-08-03 21:10:52]

Hi Dan, this is a small change to add a field to one of our data structures that
will eventually be sent from a server.

[gone, 2016-08-03 21:16:09]

lgtm

[cco3, 2016-08-03 21:31:14]

The CQ bit was checked by cco3@chromium.org

[commit-bot: I haz the power, 2016-08-03 21:31:51]

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, 2016-08-03 22:22:06]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-03 22:23:36]

Description was changed from

==========
Add a group id to PwsResult

A group id is an identifier that associates URLs into buckets.  (i.e.,
URLs from the same domain with the same title might have the same group
id).  In anticipation of the PWS sending Chrome a group id, this change
adds a placeholder to our PwsResult data structure.

BUG=633715
==========

to

==========
Add a group id to PwsResult

A group id is an identifier that associates URLs into buckets.  (i.e.,
URLs from the same domain with the same title might have the same group
id).  In anticipation of the PWS sending Chrome a group id, this change
adds a placeholder to our PwsResult data structure.

BUG=633715

Committed: https://crrev.com/df58d62bc0bff46e73ffde6cd3479efd5009ad5e
Cr-Commit-Position: refs/heads/master@{#409639}
==========

[commit-bot: I haz the power, 2016-08-03 22:23:37]

Patchset 1 (id:??) landed as
https://crrev.com/df58d62bc0bff46e73ffde6cd3479efd5009ad5e
Cr-Commit-Position: refs/heads/master@{#409639}