[Mac][Material Design] Use white tab spinner for dark themes.

[Mac][Material Design] Use white tab spinner for dark themes.

In Material Design we display a white tab spinner for Incognito mode
tabs, but we need to also do so for dark themes.

R=avi@chromium.org
BUG=624106
Committed: https://crrev.com/f61958a3d0125bc8848164c5dc6157e2c08738ae
Cr-Commit-Position: refs/heads/master@{#402643}

[shrike, 2016-06-28 23:58:09]

PTAL

[Avi (use Gerrit), 2016-06-29 00:30:34]

lgtm

[shrike, 2016-06-29 00:34:29]

The CQ bit was checked by shrike@chromium.org

[commit-bot: I haz the power, 2016-06-29 00:36:29]

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, 2016-06-29 01:53:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-29 01:56:14]

Description was changed from

==========
[Mac][Material Design] Use white tab spinner for dark themes.

In Material Design we display a white tab spinner for Incognito mode
tabs, but we need to also do so for dark themes.

R=avi@chromium.org
BUG=624106
==========

to

==========
[Mac][Material Design] Use white tab spinner for dark themes.

In Material Design we display a white tab spinner for Incognito mode
tabs, but we need to also do so for dark themes.

R=avi@chromium.org
BUG=624106

Committed: https://crrev.com/f61958a3d0125bc8848164c5dc6157e2c08738ae
Cr-Commit-Position: refs/heads/master@{#402643}
==========

[commit-bot: I haz the power, 2016-06-29 01:56:15]

Patchset 1 (id:??) landed as
https://crrev.com/f61958a3d0125bc8848164c5dc6157e2c08738ae
Cr-Commit-Position: refs/heads/master@{#402643}