[Devtools] Fixed waterfall area for scrollbars

[Devtools] Fixed waterfall area for scrollbars

Fixes some code left over from old timeline/waterfall in network where
it left space for scrollbars in the datagrid.

See: http://imgur.com/a/A4PDu

R=dgozman,lushnikov
BUG=653738
Committed: https://crrev.com/0acfe47fa2b1c26f934d44f01fd0f671f339c865
Cr-Commit-Position: refs/heads/master@{#432003}

[allada, 2016-11-14 19:46:04]

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

[allada, 2016-11-14 19:46:10]

PTL

[commit-bot: I haz the power, 2016-11-14 19:47:04]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[dgozman, 2016-11-14 20:19:27]

lgtm

[commit-bot: I haz the power, 2016-11-14 21:13:28]

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

[commit-bot: I haz the power, 2016-11-14 21:13:29]

Dry run: This issue passed the CQ dry run.

[allada, 2016-11-14 21:15:26]

The CQ bit was checked by allada@chromium.org

[commit-bot: I haz the power, 2016-11-14 21:16:42]

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, 2016-11-15 00:09:24]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-15 00:14:47]

Description was changed from

==========
[Devtools] Fixed waterfall area for scrollbars

Fixes some code left over from old timeline/waterfall in network where
it left space for scrollbars in the datagrid.

See: http://imgur.com/a/A4PDu

R=dgozman,lushnikov
BUG=653738
==========

to

==========
[Devtools] Fixed waterfall area for scrollbars

Fixes some code left over from old timeline/waterfall in network where
it left space for scrollbars in the datagrid.

See: http://imgur.com/a/A4PDu

R=dgozman,lushnikov
BUG=653738

Committed: https://crrev.com/0acfe47fa2b1c26f934d44f01fd0f671f339c865
Cr-Commit-Position: refs/heads/master@{#432003}
==========

[commit-bot: I haz the power, 2016-11-15 00:14:48]

Patchset 1 (id:??) landed as
https://crrev.com/0acfe47fa2b1c26f934d44f01fd0f671f339c865
Cr-Commit-Position: refs/heads/master@{#432003}