Prerender: update historgram utility functions.

Prerender: update historgram utility functions.

No functional change.

BUG=677257
Review-Url: https://codereview.chromium.org/2653463005
Cr-Commit-Position: refs/heads/master@{#445376}
Committed: https://chromium.googlesource.com/chromium/src/+/15080f7bd23300cfba06cb9558923296a1b30f72

[mattcary, 2017-01-23 10:18:17]

mattcary@chromium.org changed reviewers:
+ droger@chromium.org, pasko@chromium.org

[droger, 2017-01-23 13:08:06]

lgtm

[pasko, 2017-01-23 13:16:12]

lgtm

[mattcary, 2017-01-23 13:16:43]

The CQ bit was checked by mattcary@chromium.org

[commit-bot: I haz the power, 2017-01-23 13:16:51]

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, 2017-01-23 13:18:10]

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

[commit-bot: I haz the power, 2017-01-23 13:18:11]

Try jobs failed on following builders:
  win_chromium_compile_dbg_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_comp...)

[mattcary, 2017-01-23 13:19:51]

The CQ bit was checked by mattcary@chromium.org

[commit-bot: I haz the power, 2017-01-23 13:20:06]

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, 2017-01-23 15:20:13]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485177591875090, "parent_rev":
"b99644788000532b173bd5d55e09152987a669af", "commit_rev":
"15080f7bd23300cfba06cb9558923296a1b30f72"}

[commit-bot: I haz the power, 2017-01-23 15:21:15]

Description was changed from

==========
Prerender: update historgram utility functions.

No functional change.

BUG=677257
==========

to

==========
Prerender: update historgram utility functions.

No functional change.

BUG=677257

Review-Url: https://codereview.chromium.org/2653463005
Cr-Commit-Position: refs/heads/master@{#445376}
Committed:
https://chromium.googlesource.com/chromium/src/+/15080f7bd23300cfba06cb955892...
==========

[commit-bot: I haz the power, 2017-01-23 15:21:16]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/15080f7bd23300cfba06cb955892...