The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/472ee1be969773c6518d44a29c22abdf9f3d2002

commit 472ee1be969773c6518d44a29c22abdf9f3d2002
Author: mohsen <mohsen@chromium.org>
Date: Wed Feb 22 23:44:46 2017

Remove non-MD code from OverviewButtonTray

BUG= 687800 
TEST=none

Review-Url: https://codereview.chromium.org/2711663003
Cr-Commit-Position: refs/heads/master@{#452276}

[modify] https://crrev.com/472ee1be969773c6518d44a29c22abdf9f3d2002/ash/common/system/overview/overview_button_tray.cc
[modify] https://crrev.com/472ee1be969773c6518d44a29c22abdf9f3d2002/ash/resources/ash_resources.grd
[delete] https://crrev.com/83cfba4c65a0a545656dfb2babe8a423be83fd62/ash/resources/default_100_percent/cros/status/status_overview_mode.png
[delete] https://crrev.com/83cfba4c65a0a545656dfb2babe8a423be83fd62/ash/resources/default_200_percent/cros/status/status_overview_mode.png