[turbofan] Make Pipeline more private.

[turbofan] Make Pipeline more private.

By now the Pipeline class can no longer be used to construct instances
from the outside. The constructor and all non-exposed helpers can be
made private.

R=bmeurer@chromium.org

Committed: https://crrev.com/3394e88964d55dedc9d64faae2a545a8e400553e
Cr-Commit-Position: refs/heads/master@{#35978}

[Benedikt Meurer, 2016-05-03 11:35:26]

lgtm

[Michael Starzinger, 2016-05-03 11:39:32]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-05-03 11:39:42]

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

[commit-bot: I haz the power, 2016-05-03 11:39:43]

This CL has an open dependency (Issue 1946523002 Patch 1). Please resolve the
dependency and try again.
If you are sure that there is no real dependency, please use one of the options
listed in https://goo.gl/9Es4OR to land the CL.

[Michael Starzinger, 2016-05-03 11:52:14]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-05-03 11:52:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1943243003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1943243003/1

[commit-bot: I haz the power, 2016-05-03 11:56:27]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-03 11:56:53]

Description was changed from

==========
[turbofan] Make Pipeline more private.

By now the Pipeline class can no longer be used to construct instances
from the outside. The constructor and all non-exposed helpers can be
made private.

R=bmeurer@chromium.org
==========

to

==========
[turbofan] Make Pipeline more private.

By now the Pipeline class can no longer be used to construct instances
from the outside. The constructor and all non-exposed helpers can be
made private.

R=bmeurer@chromium.org

Committed: https://crrev.com/3394e88964d55dedc9d64faae2a545a8e400553e
Cr-Commit-Position: refs/heads/master@{#35978}
==========

[commit-bot: I haz the power, 2016-05-03 11:56:54]

Patchset 1 (id:??) landed as
https://crrev.com/3394e88964d55dedc9d64faae2a545a8e400553e
Cr-Commit-Position: refs/heads/master@{#35978}