The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/598ab1479d421bc56bec0659bb6aacfaed6d6959

commit 598ab1479d421bc56bec0659bb6aacfaed6d6959
Author: sky <sky@chromium.org>
Date: Tue Sep 27 19:36:59 2016

Fixes bug in WmWindowAura::OnWindowVisibilityChanged()

The code was assuming window was this->window_, which is not
necessarily the case.

BUG= 650755 
TEST=none
R=oshima@chromium.org

Review-Url: https://codereview.chromium.org/2369413002
Cr-Commit-Position: refs/heads/master@{#421298}

[modify] https://crrev.com/598ab1479d421bc56bec0659bb6aacfaed6d6959/ash/aura/wm_window_aura.cc
[modify] https://crrev.com/598ab1479d421bc56bec0659bb6aacfaed6d6959/ui/aura/window_observer.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c

commit 3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c
Author: sky <sky@chromium.org>
Date: Wed Sep 28 20:44:28 2016

Test coverage for bug in WmWindowAura::OnWindowVisibilityChanged()

Also gets mus side working too.

BUG= 650755 
TEST=none
R=jamescook@chromium.org

Review-Url: https://codereview.chromium.org/2377853002
Cr-Commit-Position: refs/heads/master@{#421633}

[modify] https://crrev.com/3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c/ash/BUILD.gn
[modify] https://crrev.com/3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c/ash/common/test/ash_test.cc
[modify] https://crrev.com/3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c/ash/common/test/ash_test.h
[modify] https://crrev.com/3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c/ash/common/wm_window_observer.h
[add] https://crrev.com/3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c/ash/common/wm_window_unittest.cc
[modify] https://crrev.com/3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c/ash/mus/BUILD.gn
[modify] https://crrev.com/3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c/ash/mus/bridge/wm_window_mus.cc
[modify] https://crrev.com/3fdae2f73beeb79c2b1f2c964e3fd290c4bb3e6c/ash/mus/bridge/wm_window_mus.h

Closing bug as per comment #3