Remove more unmapped media galleries histograms.

Remove more unmapped media galleries histograms.

It's storage_monitor code, but it was mostly used for media galleries.

BUG=643534, 643535
Review-Url: https://codereview.chromium.org/2837453002
Cr-Commit-Position: refs/heads/master@{#466203}
Committed: https://chromium.googlesource.com/chromium/src/+/822449eabd6f5c248beabea55fecc304f783d7a2

[Lei Zhang, 2017-04-20 23:22:49]

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

[commit-bot: I haz the power, 2017-04-20 23:23:01]

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

[Lei Zhang, 2017-04-20 23:23:22]

thestig@chromium.org changed reviewers:
+ tommycli@chromium.org

[Lei Zhang, 2017-04-20 23:23:22]

Moar!

[tommycli, 2017-04-20 23:25:15]

On 2017/04/20 23:23:22, Lei Zhang wrote:
> Moar!

lgtm

[commit-bot: I haz the power, 2017-04-21 00:14:35]

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

[commit-bot: I haz the power, 2017-04-21 00:14:36]

Dry run: This issue passed the CQ dry run.

[Lei Zhang, 2017-04-21 00:35:55]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2017-04-21 00:36:10]

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, 2017-04-21 00:41:38]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1492734955076860, "parent_rev":
"b6d0e27887ff5b622a03ac53d4343cc913365282", "commit_rev":
"822449eabd6f5c248beabea55fecc304f783d7a2"}

[commit-bot: I haz the power, 2017-04-21 00:41:48]

Description was changed from

==========
Remove more unmapped media galleries histograms.

It's storage_monitor code, but it was mostly used for media galleries.

BUG=643534,643535
==========

to

==========
Remove more unmapped media galleries histograms.

It's storage_monitor code, but it was mostly used for media galleries.

BUG=643534,643535

Review-Url: https://codereview.chromium.org/2837453002
Cr-Commit-Position: refs/heads/master@{#466203}
Committed:
https://chromium.googlesource.com/chromium/src/+/822449eabd6f5c248beabea55fec...
==========

[commit-bot: I haz the power, 2017-04-21 00:41:49]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/822449eabd6f5c248beabea55fec...