Revert of Linux Aura: Use Aura theme on all windows when 'Use Classic theme' is used

Revert of Linux Aura: Use Aura theme on all windows when 'Use Classic theme' is used (patchset #6 id:100001 of https://codereview.chromium.org/2667703002/ )

Reason for revert:
Browser crash repro:
1. Open browser window
2. Open incognito window
3. Open task manager from incognito window
4. Close incognito window

thomasanderson@ and sky@ are currently discussing a solution offline

Original issue's description:
> Linux Aura: Use Aura theme on all windows when 'Use Classic theme' is used
> 
> Previously, windows like tooltips, context menus, and the task manager
> always used the Gtk theme even when "Use Classic theme" was selected
> (whereas browser windows would be affected).  This CL makes it so the
> Aura theme is used on all windows if the classic theme is used.
> 
> BUG=132847
> R=sky@chromium.org,erg@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2667703002
> Cr-Commit-Position: refs/heads/master@{#447312}
> Committed: https://chromium.googlesource.com/chromium/src/+/66478cfd170f564932f42a2ca7cbb0b5bf779480

TBR=erg@chromium.org,sky@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=132847
Review-Url: https://codereview.chromium.org/2693783005
Cr-Commit-Position: refs/heads/master@{#450566}
Committed: https://chromium.googlesource.com/chromium/src/+/0b3c819b0e36250bf36c04e3d8e2dc9e26317238

[Tom (Use chromium acct), 2017-02-14 23:42:10]

The CQ bit was checked by thomasanderson@google.com

[Tom (Use chromium acct), 2017-02-14 23:42:11]

Created Revert of Linux Aura: Use Aura theme on all windows when 'Use Classic
theme' is used

[commit-bot: I haz the power, 2017-02-14 23:43:17]

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, 2017-02-14 23:43:17]

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

[commit-bot: I haz the power, 2017-02-14 23:43:18]

No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
Committers are members of the group "project-chromium-committers".
Note that this has nothing to do with OWNERS files.

[Tom (Use chromium acct), 2017-02-14 23:44:00]

sky ptal

[Tom (Use chromium acct), 2017-02-14 23:45:49]

The CQ bit was checked by thomasanderson@google.com to run a CQ dry run

[commit-bot: I haz the power, 2017-02-14 23:46:31]

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

[sky, 2017-02-15 00:44:05]

LGTM

[commit-bot: I haz the power, 2017-02-15 01:48:04]

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

[commit-bot: I haz the power, 2017-02-15 01:48:04]

Dry run: This issue passed the CQ dry run.

[Tom (Use chromium acct), 2017-02-15 01:50:34]

The CQ bit was checked by thomasanderson@google.com

[commit-bot: I haz the power, 2017-02-15 01:51:53]

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, 2017-02-15 05:43:29]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487123434859050, "parent_rev":
"1e1ea2bcd2e632ba3b3dcbd45ca3405771e57a9c", "commit_rev":
"0b3c819b0e36250bf36c04e3d8e2dc9e26317238"}

[commit-bot: I haz the power, 2017-02-15 05:44:46]

Description was changed from

==========
Revert of Linux Aura: Use Aura theme on all windows when 'Use Classic theme' is
used (patchset #6 id:100001 of https://codereview.chromium.org/2667703002/ )

Reason for revert:
Browser crash repro:
1. Open browser window
2. Open incognito window
3. Open task manager from incognito window
4. Close incognito window

thomasanderson@ and sky@ are currently discussing a solution offline

Original issue's description:
> Linux Aura: Use Aura theme on all windows when 'Use Classic theme' is used
> 
> Previously, windows like tooltips, context menus, and the task manager
> always used the Gtk theme even when "Use Classic theme" was selected
> (whereas browser windows would be affected).  This CL makes it so the
> Aura theme is used on all windows if the classic theme is used.
> 
> BUG=132847
> R=sky@chromium.org,erg@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2667703002
> Cr-Commit-Position: refs/heads/master@{#447312}
> Committed:
https://chromium.googlesource.com/chromium/src/+/66478cfd170f564932f42a2ca7cb...

TBR=erg@chromium.org,sky@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=132847
==========

to

==========
Revert of Linux Aura: Use Aura theme on all windows when 'Use Classic theme' is
used (patchset #6 id:100001 of https://codereview.chromium.org/2667703002/ )

Reason for revert:
Browser crash repro:
1. Open browser window
2. Open incognito window
3. Open task manager from incognito window
4. Close incognito window

thomasanderson@ and sky@ are currently discussing a solution offline

Original issue's description:
> Linux Aura: Use Aura theme on all windows when 'Use Classic theme' is used
> 
> Previously, windows like tooltips, context menus, and the task manager
> always used the Gtk theme even when "Use Classic theme" was selected
> (whereas browser windows would be affected).  This CL makes it so the
> Aura theme is used on all windows if the classic theme is used.
> 
> BUG=132847
> R=sky@chromium.org,erg@chromium.org
> 
> Review-Url: https://codereview.chromium.org/2667703002
> Cr-Commit-Position: refs/heads/master@{#447312}
> Committed:
https://chromium.googlesource.com/chromium/src/+/66478cfd170f564932f42a2ca7cb...

TBR=erg@chromium.org,sky@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=132847

Review-Url: https://codereview.chromium.org/2693783005
Cr-Commit-Position: refs/heads/master@{#450566}
Committed:
https://chromium.googlesource.com/chromium/src/+/0b3c819b0e36250bf36c04e3d8e2...
==========

[commit-bot: I haz the power, 2017-02-15 05:44:47]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/0b3c819b0e36250bf36c04e3d8e2...