Replace 2 histograms with Variations.SeedFetchResponseOrErrorCode.

Replace 2 histograms with Variations.SeedFetchResponseOrErrorCode.

Combines Variations.SeedFetchResponseCode and
Variations.FailedRequestErrorCode histograms.

It's useful to have error codes and http response codes in one.

BUG=652406
Committed: https://crrev.com/6e0a63921b29d06a00295a7147d828ad4ee9624a
Cr-Commit-Position: refs/heads/master@{#422580}

[Alexei Svitkine (slow), 2016-10-03 20:33:37]

The CQ bit was checked by asvitkine@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-10-03 20:34:06]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Alexei Svitkine (slow), 2016-10-03 20:38:08]

asvitkine@chromium.org changed reviewers:
+ rkaplow@chromium.org

[rkaplow, 2016-10-03 21:03:54]

lgtm

[Alexei Svitkine (slow), 2016-10-03 21:18:53]

The CQ bit was unchecked by asvitkine@chromium.org

[Alexei Svitkine (slow), 2016-10-03 21:18:58]

The CQ bit was checked by asvitkine@chromium.org

[commit-bot: I haz the power, 2016-10-03 21:19:43]

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, 2016-10-03 22:57:38]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-03 23:00:45]

Description was changed from

==========
Replace 2 histograms with Variations.SeedFetchResponseOrErrorCode.

Combines Variations.SeedFetchResponseCode and
Variations.FailedRequestErrorCode histograms.

It's useful to have error codes and http response codes in one.

BUG=652406
==========

to

==========
Replace 2 histograms with Variations.SeedFetchResponseOrErrorCode.

Combines Variations.SeedFetchResponseCode and
Variations.FailedRequestErrorCode histograms.

It's useful to have error codes and http response codes in one.

BUG=652406

Committed: https://crrev.com/6e0a63921b29d06a00295a7147d828ad4ee9624a
Cr-Commit-Position: refs/heads/master@{#422580}
==========

[commit-bot: I haz the power, 2016-10-03 23:00:47]

Patchset 1 (id:??) landed as
https://crrev.com/6e0a63921b29d06a00295a7147d828ad4ee9624a
Cr-Commit-Position: refs/heads/master@{#422580}