Adding Shiba, Ahmed an Olga.

We discussed that offline and we agreed it would be nice to keep it open, consistently with the paradigm we use for the volume on/off toggle.

Can you take care of that Evan? I added Ahmed who worked in implementing the buttons.

sure

Sebastien, shall we add motion to this icon?

We shall, I have no design for this at the moment though.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/fc7414e6b883f12100d0271afbf33a5bf46ee17a

commit fc7414e6b883f12100d0271afbf33a5bf46ee17a
Author: estade <estade@chromium.org>
Date: Mon May 22 16:58:03 2017

Leave ChromeOS system menu open when toggling nightlight.

BUG= 721439 

Review-Url: https://codereview.chromium.org/2884323002
Cr-Commit-Position: refs/heads/master@{#473601}

[modify] https://crrev.com/fc7414e6b883f12100d0271afbf33a5bf46ee17a/ash/system/tiles/tiles_default_view.cc
[modify] https://crrev.com/fc7414e6b883f12100d0271afbf33a5bf46ee17a/ash/system/tiles/tiles_default_view.h
[modify] https://crrev.com/fc7414e6b883f12100d0271afbf33a5bf46ee17a/ash/system/tiles/tray_tiles_unittest.cc
[modify] https://crrev.com/fc7414e6b883f12100d0271afbf33a5bf46ee17a/ash/system/tray/system_menu_button.cc
[modify] https://crrev.com/fc7414e6b883f12100d0271afbf33a5bf46ee17a/ash/system/tray/system_menu_button.h