Revert of Utilize FrameSelection::setSelection() taking SelectionInDOMTree/SelectionInFlatTree

Revert of Utilize FrameSelection::setSelection() taking SelectionInDOMTree/SelectionInFlatTree (patchset #3 id:40001 of https://codereview.chromium.org/2457613004/ )

Reason for revert:
Caused http://b/32727536

Original issue's description:
> Utilize FrameSelection::setSelection() taking SelectionInDOMTree/SelectionInFlatTree
>
> This patch changes |FrameSelection:setSelection()| taking |VisibleSelection| and
> |VisibleSelectionInFlatTRee| to use |SelectionIn{DOM,Flat}Tree| to reduce
> usage of |VisibleSelection{,InFlatTree}| for improving code health.
>
> BUG=657237
> TEST=n/a; no behavior changes
>
> Committed: https://crrev.com/1ab21eb247b8c05daf26de66bfb63a323c738866
> Cr-Commit-Position: refs/heads/master@{#428660}

TBR=xiaochengh@chromium.org,yoichio@chromium.org,yosin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=657237
Committed: https://crrev.com/0acae5b3190e46c4a2cb8920753005b0e5daa36b
Cr-Commit-Position: refs/heads/master@{#431357}

[aelias_OOO_until_Jul13, 2016-11-10 20:04:57]

The CQ bit was checked by aelias@chromium.org

[aelias_OOO_until_Jul13, 2016-11-10 20:04:58]

Created Revert of Utilize FrameSelection::setSelection() taking
SelectionInDOMTree/SelectionInFlatTree

[commit-bot: I haz the power, 2016-11-10 20:05:16]

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, 2016-11-10 21:23:40]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-10 21:34:46]

Description was changed from

==========
Revert of Utilize FrameSelection::setSelection() taking
SelectionInDOMTree/SelectionInFlatTree (patchset #3 id:40001 of
https://codereview.chromium.org/2457613004/ )

Reason for revert:
Caused http://b/32727536

Original issue's description:
> Utilize FrameSelection::setSelection() taking
SelectionInDOMTree/SelectionInFlatTree
> 
> This patch changes |FrameSelection:setSelection()| taking |VisibleSelection|
and
> |VisibleSelectionInFlatTRee| to use |SelectionIn{DOM,Flat}Tree| to reduce
> usage of |VisibleSelection{,InFlatTree}| for improving code health.
> 
> BUG=657237
> TEST=n/a; no behavior changes
> 
> Committed: https://crrev.com/1ab21eb247b8c05daf26de66bfb63a323c738866
> Cr-Commit-Position: refs/heads/master@{#428660}

TBR=xiaochengh@chromium.org,yoichio@chromium.org,yosin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=657237
==========

to

==========
Revert of Utilize FrameSelection::setSelection() taking
SelectionInDOMTree/SelectionInFlatTree (patchset #3 id:40001 of
https://codereview.chromium.org/2457613004/ )

Reason for revert:
Caused http://b/32727536

Original issue's description:
> Utilize FrameSelection::setSelection() taking
SelectionInDOMTree/SelectionInFlatTree
>
> This patch changes |FrameSelection:setSelection()| taking |VisibleSelection|
and
> |VisibleSelectionInFlatTRee| to use |SelectionIn{DOM,Flat}Tree| to reduce
> usage of |VisibleSelection{,InFlatTree}| for improving code health.
>
> BUG=657237
> TEST=n/a; no behavior changes
>
> Committed: https://crrev.com/1ab21eb247b8c05daf26de66bfb63a323c738866
> Cr-Commit-Position: refs/heads/master@{#428660}

TBR=xiaochengh@chromium.org,yoichio@chromium.org,yosin@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=657237

Committed: https://crrev.com/0acae5b3190e46c4a2cb8920753005b0e5daa36b
Cr-Commit-Position: refs/heads/master@{#431357}
==========

[commit-bot: I haz the power, 2016-11-10 21:34:46]

Patchset 1 (id:??) landed as
https://crrev.com/0acae5b3190e46c4a2cb8920753005b0e5daa36b
Cr-Commit-Position: refs/heads/master@{#431357}