Clean up descriptions and add metrics for the Data Saver UI

Clean up descriptions and add metrics for the Data Saver UI

Specifically, add menu option displays and track site breakdown displays,
sorting, and expansion.

BUG=716111
Review-Url: https://codereview.chromium.org/2846953002
Cr-Commit-Position: refs/heads/master@{#468107}
Committed: https://chromium.googlesource.com/chromium/src/+/fd1f401a843ef214df3818fe714aa7303d27261d

[megjablon, 2017-04-27 18:38:35]

Patchset #1 (id:1) has been deleted

[megjablon, 2017-04-27 18:41:02]

megjablon@chromium.org changed reviewers:
+ isherman@chromium.org, twellington@chromium.org

[megjablon, 2017-04-27 18:41:03]

twellington: chrome/*
isherman: histograms.xml

[Ilya Sherman, 2017-04-27 21:27:17]

Metrics lgtm

[Theresa, 2017-04-27 23:12:03]

lgtm

[megjablon, 2017-04-28 17:23:08]

The CQ bit was checked by megjablon@chromium.org

[commit-bot: I haz the power, 2017-04-28 17:23:54]

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, 2017-04-28 18:54:56]

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

[commit-bot: I haz the power, 2017-04-28 18:54:58]

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

[megjablon, 2017-04-28 19:30:49]

The CQ bit was checked by megjablon@chromium.org

[commit-bot: I haz the power, 2017-04-28 19:31:34]

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, 2017-04-28 20:14:06]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1493407849026900,
"parent_rev": "0a505cbed8bb3d14d8ad5b7631c5367e45632711", "commit_rev":
"fd1f401a843ef214df3818fe714aa7303d27261d"}

[commit-bot: I haz the power, 2017-04-28 20:14:20]

Description was changed from

==========
Clean up descriptions and add metrics for the Data Saver UI

Specifically, add menu option displays and track site breakdown displays,
sorting, and expansion.

BUG=716111
==========

to

==========
Clean up descriptions and add metrics for the Data Saver UI

Specifically, add menu option displays and track site breakdown displays,
sorting, and expansion.

BUG=716111

Review-Url: https://codereview.chromium.org/2846953002
Cr-Commit-Position: refs/heads/master@{#468107}
Committed:
https://chromium.googlesource.com/chromium/src/+/fd1f401a843ef214df3818fe714a...
==========

[commit-bot: I haz the power, 2017-04-28 20:14:22]

Committed patchset #1 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/fd1f401a843ef214df3818fe714a...