Revert of [Devtools] Moved flatten children to children nodes instead of datagrid

Revert of [Devtools] Moved flatten children to children nodes instead of datagrid (patchset #4 id:100001 of https://codereview.chromium.org/2540543002/ )

Reason for revert:
Broke timeline tree view.
BUG=671487
Original issue's description:
> [Devtools] Moved flatten children to children nodes instead of datagrid
>
> This patch moves the flattenNodeList() and renames it flattenChildren() to
> be more appropriate. It is also moves it to the nodes instead of the
> DataGrid.
>
> R=dgozman
> BUG=None
>
> Committed: https://crrev.com/9d0774bc242a8126f10c9be7922549336162ed88
> Cr-Commit-Position: refs/heads/master@{#434901}

TBR=dgozman@chromium.org,allada@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=None

Committed: https://crrev.com/6c2f9ee53faefc6bfd70834df9cfb794412eb425
Cr-Commit-Position: refs/heads/master@{#436770}

[alph, 2016-12-06 19:10:58]

Created Revert of [Devtools] Moved flatten children to children nodes instead of
datagrid

[alph, 2016-12-06 19:11:26]

The CQ bit was checked by alph@chromium.org

[commit-bot: I haz the power, 2016-12-06 19:12:08]

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, 2016-12-06 23:21:05]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481051486353400, "parent_rev":
"fc2bff62d8604c2348eaa2ab36b29c9ae5fb3a9f", "commit_rev":
"3c47fb3212e595d84e17a0e3535258f012839fce"}

[commit-bot: I haz the power, 2016-12-06 23:21:35]

Description was changed from

==========
Revert of [Devtools] Moved flatten children to children nodes instead of
datagrid (patchset #4 id:100001 of https://codereview.chromium.org/2540543002/ )

Reason for revert:
Broke timeline tree view.
BUG=671487

Original issue's description:
> [Devtools] Moved flatten children to children nodes instead of datagrid
> 
> This patch moves the flattenNodeList() and renames it flattenChildren() to
> be more appropriate. It is also moves it to the nodes instead of the
> DataGrid.
> 
> R=dgozman
> BUG=None
> 
> Committed: https://crrev.com/9d0774bc242a8126f10c9be7922549336162ed88
> Cr-Commit-Position: refs/heads/master@{#434901}

TBR=dgozman@chromium.org,allada@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=None
==========

to

==========
Revert of [Devtools] Moved flatten children to children nodes instead of
datagrid (patchset #4 id:100001 of https://codereview.chromium.org/2540543002/ )

Reason for revert:
Broke timeline tree view.
BUG=671487

Original issue's description:
> [Devtools] Moved flatten children to children nodes instead of datagrid
> 
> This patch moves the flattenNodeList() and renames it flattenChildren() to
> be more appropriate. It is also moves it to the nodes instead of the
> DataGrid.
> 
> R=dgozman
> BUG=None
> 
> Committed: https://crrev.com/9d0774bc242a8126f10c9be7922549336162ed88
> Cr-Commit-Position: refs/heads/master@{#434901}

TBR=dgozman@chromium.org,allada@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=None
==========

[commit-bot: I haz the power, 2016-12-06 23:21:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-06 23:23:58]

Description was changed from

==========
Revert of [Devtools] Moved flatten children to children nodes instead of
datagrid (patchset #4 id:100001 of https://codereview.chromium.org/2540543002/ )

Reason for revert:
Broke timeline tree view.
BUG=671487

Original issue's description:
> [Devtools] Moved flatten children to children nodes instead of datagrid
> 
> This patch moves the flattenNodeList() and renames it flattenChildren() to
> be more appropriate. It is also moves it to the nodes instead of the
> DataGrid.
> 
> R=dgozman
> BUG=None
> 
> Committed: https://crrev.com/9d0774bc242a8126f10c9be7922549336162ed88
> Cr-Commit-Position: refs/heads/master@{#434901}

TBR=dgozman@chromium.org,allada@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=None
==========

to

==========
Revert of [Devtools] Moved flatten children to children nodes instead of
datagrid (patchset #4 id:100001 of https://codereview.chromium.org/2540543002/ )

Reason for revert:
Broke timeline tree view.
BUG=671487

Original issue's description:
> [Devtools] Moved flatten children to children nodes instead of datagrid
>
> This patch moves the flattenNodeList() and renames it flattenChildren() to
> be more appropriate. It is also moves it to the nodes instead of the
> DataGrid.
>
> R=dgozman
> BUG=None
>
> Committed: https://crrev.com/9d0774bc242a8126f10c9be7922549336162ed88
> Cr-Commit-Position: refs/heads/master@{#434901}

TBR=dgozman@chromium.org,allada@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=None

Committed: https://crrev.com/6c2f9ee53faefc6bfd70834df9cfb794412eb425
Cr-Commit-Position: refs/heads/master@{#436770}
==========

[commit-bot: I haz the power, 2016-12-06 23:23:59]

Patchset 1 (id:??) landed as
https://crrev.com/6c2f9ee53faefc6bfd70834df9cfb794412eb425
Cr-Commit-Position: refs/heads/master@{#436770}