[DevTools] Migrate AuditsPanel away from SidebarTree.

[DevTools] Migrate AuditsPanel away from SidebarTree.

This is a step towards removing SidebarTree and moving all
tree outlines into shadow.

BUG=none

Committed: https://crrev.com/b59bc78ac4e434d27af632d0c70b192dd9c5a5c4
Cr-Commit-Position: refs/heads/master@{#419077}

[dgozman, 2016-09-15 23:56:27]

dgozman@chromium.org changed reviewers:
+ caseq@chromium.org

[dgozman, 2016-09-15 23:56:27]

Could you please take a look?

[caseq, 2016-09-16 00:05:18]

lgtm

[dgozman, 2016-09-16 00:05:37]

The CQ bit was checked by dgozman@chromium.org

[commit-bot: I haz the power, 2016-09-16 00:06:03]

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, 2016-09-16 01:59:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-16 02:01:08]

Description was changed from

==========
[DevTools] Migrate AuditsPanel away from SidebarTree.

This is a step towards removing SidebarTree and moving all
tree outlines into shadow.

BUG=none
==========

to

==========
[DevTools] Migrate AuditsPanel away from SidebarTree.

This is a step towards removing SidebarTree and moving all
tree outlines into shadow.

BUG=none

Committed: https://crrev.com/b59bc78ac4e434d27af632d0c70b192dd9c5a5c4
Cr-Commit-Position: refs/heads/master@{#419077}
==========

[commit-bot: I haz the power, 2016-09-16 02:01:09]

Patchset 1 (id:??) landed as
https://crrev.com/b59bc78ac4e434d27af632d0c70b192dd9c5a5c4
Cr-Commit-Position: refs/heads/master@{#419077}