Revert of Record offline histograms with suffix via Histogram::FactoryGet

Revert of Record offline histograms with suffix via Histogram::FactoryGet (patchset #5 id:80001 of https://codereview.chromium.org/2022283003/ )

Reason for revert:
Need to revert this since the merge to M52 is very difficult without touching offline_page_model.cc. Will land this again with trivial change to offline_page_model.cc such that I can bring changes from offline_page_model_impl.cc to offline_page_model.cc in M52.

Original issue's description:
> Record offline histograms with suffix via Histogram::FactoryGet
>
> Also move all offline client namespace constants into one central place.
>
> BUG=616231
> TBR=mmenke@chromium.org
>
> Committed: https://crrev.com/8ccbcdc96179ab65038e17cdbddc149e28754830
> Cr-Commit-Position: refs/heads/master@{#397233}

TBR=dimich@google.com,dewittj@chromium.org,mmenke@chromium.org,fgorski@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=616231
Committed: https://crrev.com/faeb6d3a51624f866bc590ef7d799933d88fc04f
Cr-Commit-Position: refs/heads/master@{#397281}

[jianli, 2016-06-01 23:26:25]

The CQ bit was checked by jianli@chromium.org

[jianli, 2016-06-01 23:26:26]

Created Revert of Record offline histograms with suffix via
Histogram::FactoryGet

[commit-bot: I haz the power, 2016-06-01 23:27:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2028383002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2028383002/1

[commit-bot: I haz the power, 2016-06-01 23:28:53]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-01 23:30:59]

Description was changed from

==========
Revert of Record offline histograms with suffix via Histogram::FactoryGet
(patchset #5 id:80001 of https://codereview.chromium.org/2022283003/ )

Reason for revert:
Need to revert this since the merge to M52 is very difficult without touching
offline_page_model.cc. Will land this again with trivial change to
offline_page_model.cc such that I can bring changes from
offline_page_model_impl.cc to offline_page_model.cc in M52.

Original issue's description:
> Record offline histograms with suffix via Histogram::FactoryGet
> 
> Also move all offline client namespace constants into one central place.
> 
> BUG=616231
> TBR=mmenke@chromium.org
> 
> Committed: https://crrev.com/8ccbcdc96179ab65038e17cdbddc149e28754830
> Cr-Commit-Position: refs/heads/master@{#397233}

TBR=dimich@google.com,dewittj@chromium.org,mmenke@chromium.org,fgorski@chromi...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=616231
==========

to

==========
Revert of Record offline histograms with suffix via Histogram::FactoryGet
(patchset #5 id:80001 of https://codereview.chromium.org/2022283003/ )

Reason for revert:
Need to revert this since the merge to M52 is very difficult without touching
offline_page_model.cc. Will land this again with trivial change to
offline_page_model.cc such that I can bring changes from
offline_page_model_impl.cc to offline_page_model.cc in M52.

Original issue's description:
> Record offline histograms with suffix via Histogram::FactoryGet
>
> Also move all offline client namespace constants into one central place.
>
> BUG=616231
> TBR=mmenke@chromium.org
>
> Committed: https://crrev.com/8ccbcdc96179ab65038e17cdbddc149e28754830
> Cr-Commit-Position: refs/heads/master@{#397233}

TBR=dimich@google.com,dewittj@chromium.org,mmenke@chromium.org,fgorski@chromi...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=616231

Committed: https://crrev.com/faeb6d3a51624f866bc590ef7d799933d88fc04f
Cr-Commit-Position: refs/heads/master@{#397281}
==========

[commit-bot: I haz the power, 2016-06-01 23:31:00]

Patchset 1 (id:??) landed as
https://crrev.com/faeb6d3a51624f866bc590ef7d799933d88fc04f
Cr-Commit-Position: refs/heads/master@{#397281}