supersize: Fix diff logic for changed vs unchanged of groups

supersize: Fix diff logic for changed vs unchanged of groups

It wasn't correct when subgroups had aliases that were removed.
Tests are updated to add coverage for this case.

BUG=681694
Review-Url: https://codereview.chromium.org/2884283002
Cr-Commit-Position: refs/heads/master@{#472133}
Committed: https://chromium.googlesource.com/chromium/src/+/ac5c9698111bcb9e65b291dcf35755c9f72a2517

[agrieve, 2017-05-16 15:24:00]

Description was changed from

==========
supersize: Fix diff logic for changed vs unchanged of groups

BUG=681694
==========

to

==========
supersize: Fix diff logic for changed vs unchanged of groups

It wasn't correct when subgroups had aliases that were removed.
Tests are updated to add coverage for this case.

BUG=681694
==========

[agrieve, 2017-05-16 15:24:00]

agrieve@chromium.org changed reviewers:
+ estevenson@chromium.org

[agrieve, 2017-05-16 15:24:12]

On 2017/05/16 15:24:00, agrieve wrote:
> mailto:agrieve@chromium.org changed reviewers:
> + mailto:estevenson@chromium.org

🥊

[estevenson, 2017-05-16 16:39:10]

lgtm

[agrieve, 2017-05-16 16:46:21]

The CQ bit was checked by agrieve@chromium.org

[commit-bot: I haz the power, 2017-05-16 16:47:33]

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, 2017-05-16 17:01:03]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1494953181796780, "parent_rev":
"c73bc5c480b880aac3a5a228e2b2102602be9619", "commit_rev":
"ac5c9698111bcb9e65b291dcf35755c9f72a2517"}

[commit-bot: I haz the power, 2017-05-16 17:01:16]

Description was changed from

==========
supersize: Fix diff logic for changed vs unchanged of groups

It wasn't correct when subgroups had aliases that were removed.
Tests are updated to add coverage for this case.

BUG=681694
==========

to

==========
supersize: Fix diff logic for changed vs unchanged of groups

It wasn't correct when subgroups had aliases that were removed.
Tests are updated to add coverage for this case.

BUG=681694

Review-Url: https://codereview.chromium.org/2884283002
Cr-Commit-Position: refs/heads/master@{#472133}
Committed:
https://chromium.googlesource.com/chromium/src/+/ac5c9698111bcb9e65b291dcf357...
==========

[commit-bot: I haz the power, 2017-05-16 17:01:17]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/ac5c9698111bcb9e65b291dcf357...