Reduce the number of MetricsData protos to put in each request.

Reduce the number of MetricsData protos to put in each request.

Large metrics collections from mastermon were being dropped for some reason after the switch to pubsub.

BUG=510602
Committed: https://chromium.googlesource.com/infra/infra/+/764fa54893a3e0d458bf7a484587ddd4a8ecb689

[dsansome, 2015-08-17 08:38:06]

dsansome@chromium.org changed reviewers:
+ sergeyberezin@chromium.org

[Sergey Berezin, 2015-08-17 23:57:03]

LGTM, and I added a link to a relevant bug. Thanks!

[dsansome, 2015-08-18 01:52:55]

The CQ bit was checked by dsansome@chromium.org

[commit-bot: I haz the power, 2015-08-18 01:53:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1296863003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1296863003/1

[commit-bot: I haz the power, 2015-08-18 01:58:07]

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

[commit-bot: I haz the power, 2015-08-18 01:58:08]

Try jobs failed on following builders:
  infra_tester on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/infra_tester/bu...)

[dsansome, 2015-08-18 03:09:35]

The CQ bit was checked by dsansome@chromium.org

[dsansome, 2015-08-18 03:09:36]

The patchset sent to the CQ was uploaded after l-g-t-m from
sergeyberezin@chromium.org
Link to the patchset: https://codereview.chromium.org/1296863003/#ps20001
(title: "Fix the test")

[commit-bot: I haz the power, 2015-08-18 03:09:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1296863003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1296863003/20001

[commit-bot: I haz the power, 2015-08-18 03:12:38]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/infra/infra/+/764fa54893a3e0d458bf7a484587d...