Moves Shell::ShowShelf() to WmShell

Moves Shell::ShowShelf() to WmShell

Same for RootWindowController and WmRootWindowController. I want to
move TestSessionStateDelegate to ash/common, and it uses these.

BUG=none
TEST=covered by tests
R=msw@chromium.org

Committed: https://crrev.com/e9bc4e0245c9a1e570ed2cf8e12152b9122275f2
Cr-Commit-Position: refs/heads/master@{#423791}

[sky, 2016-10-06 23:46:13]

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

[commit-bot: I haz the power, 2016-10-06 23:46:49]

Dry run: 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, 2016-10-07 00:13:21]

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

[commit-bot: I haz the power, 2016-10-07 00:13:22]

Dry run: This issue passed the CQ dry run.

[msw, 2016-10-07 01:06:31]

lgtm

[sky, 2016-10-07 03:02:52]

The CQ bit was checked by sky@chromium.org

[commit-bot: I haz the power, 2016-10-07 03:03:04]

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, 2016-10-07 03:10:42]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-07 03:13:32]

Description was changed from

==========
Moves Shell::ShowShelf() to WmShell

Same for RootWindowController and WmRootWindowController. I want to
move TestSessionStateDelegate to ash/common, and it uses these.

BUG=none
TEST=covered by tests
R=msw@chromium.org
==========

to

==========
Moves Shell::ShowShelf() to WmShell

Same for RootWindowController and WmRootWindowController. I want to
move TestSessionStateDelegate to ash/common, and it uses these.

BUG=none
TEST=covered by tests
R=msw@chromium.org

Committed: https://crrev.com/e9bc4e0245c9a1e570ed2cf8e12152b9122275f2
Cr-Commit-Position: refs/heads/master@{#423791}
==========

[commit-bot: I haz the power, 2016-10-07 03:13:33]

Patchset 1 (id:??) landed as
https://crrev.com/e9bc4e0245c9a1e570ed2cf8e12152b9122275f2
Cr-Commit-Position: refs/heads/master@{#423791}