Rename RootScroller class to RootScrollerController.

Rename RootScroller class to RootScrollerController.

Its weird that the rootScroller property on document takes an Element but the
RootScroller object is really a manager class. Rename it to make this more clear
and prevent confusion.

BUG=505516
Committed: https://crrev.com/c63b2d9e1a84d24421adca8a65b52cb12da1d8c9
Cr-Commit-Position: refs/heads/master@{#398048}

[bokan, 2016-06-06 12:25:38]

Description was changed from

==========
Rename RootScroller class to RootScrollerController.

Its weird that the rootScroller property on document takes an Element but the
RootScroller object is really a manager class. Rename it to make this more clear
and prevent confusion.

BUG=505516
==========

to

==========
Rename RootScroller class to RootScrollerController.

Its weird that the rootScroller property on document takes an Element but the
RootScroller object is really a manager class. Rename it to make this more clear
and prevent confusion.

BUG=505516
==========

[bokan, 2016-06-06 12:25:38]

bokan@chromium.org changed reviewers:
+ tdresser@chromium.org

[tdresser, 2016-06-06 14:51:40]

LGTM.

I'm unsure whether "Controller" or "Manager" would be better here, but either is
fine with me.

[bokan, 2016-06-06 14:52:41]

I'm also on the fence but in
https://chromium.googlesource.com/chromium/src.git/+/16c5f9e182d412046291088a...
Elliott suggested Controller so I just went with that.

[bokan, 2016-06-06 14:52:45]

The CQ bit was checked by bokan@chromium.org

[commit-bot: I haz the power, 2016-06-06 14:52:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2040693002/1

[commit-bot: I haz the power, 2016-06-06 16:48:10]

Description was changed from

==========
Rename RootScroller class to RootScrollerController.

Its weird that the rootScroller property on document takes an Element but the
RootScroller object is really a manager class. Rename it to make this more clear
and prevent confusion.

BUG=505516
==========

to

==========
Rename RootScroller class to RootScrollerController.

Its weird that the rootScroller property on document takes an Element but the
RootScroller object is really a manager class. Rename it to make this more clear
and prevent confusion.

BUG=505516
==========

[commit-bot: I haz the power, 2016-06-06 16:48:10]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-06 16:50:29]

Description was changed from

==========
Rename RootScroller class to RootScrollerController.

Its weird that the rootScroller property on document takes an Element but the
RootScroller object is really a manager class. Rename it to make this more clear
and prevent confusion.

BUG=505516
==========

to

==========
Rename RootScroller class to RootScrollerController.

Its weird that the rootScroller property on document takes an Element but the
RootScroller object is really a manager class. Rename it to make this more clear
and prevent confusion.

BUG=505516

Committed: https://crrev.com/c63b2d9e1a84d24421adca8a65b52cb12da1d8c9
Cr-Commit-Position: refs/heads/master@{#398048}
==========

[commit-bot: I haz the power, 2016-06-06 16:50:30]

Patchset 1 (id:??) landed as
https://crrev.com/c63b2d9e1a84d24421adca8a65b52cb12da1d8c9
Cr-Commit-Position: refs/heads/master@{#398048}