[UI Views] Check menu() in ZoomView

[UI Views] Check menu() in ZoomView

AppMenuView::menu() documents that it may be null during shutdown, but ZoomView
doesn't check it. Add a check.

BUG=594055
Committed: https://crrev.com/03ad6f33b5e9d4f3b22cfd6cda5fab9002fe52d6
Cr-Commit-Position: refs/heads/master@{#381329}

[Devlin, 2016-03-15 21:39:21]

rdevlin.cronin@chromium.org changed reviewers:
+ sky@chromium.org

[Devlin, 2016-03-15 21:39:22]

https://codereview.chromium.org/1803003003/diff/1/chrome/browser/ui/views/too...
File chrome/browser/ui/views/toolbar/app_menu.cc (left):

https://codereview.chromium.org/1803003003/diff/1/chrome/browser/ui/views/too...
chrome/browser/ui/views/toolbar/app_menu.cc:651: void AppMenuDestroyed()
override { AppMenuView::AppMenuDestroyed(); }
Drive-by: this was a bit silly.

[sky, 2016-03-15 21:44:55]

LGTM

[Devlin, 2016-03-15 21:49:56]

The CQ bit was checked by rdevlin.cronin@chromium.org

[commit-bot: I haz the power, 2016-03-15 21:50:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1803003003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1803003003/1

[commit-bot: I haz the power, 2016-03-15 21:56:27]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-15 21:58:05]

Description was changed from

==========
[UI Views] Check menu() in ZoomView

AppMenuView::menu() documents that it may be null during shutdown, but ZoomView
doesn't check it. Add a check.

BUG=594055
==========

to

==========
[UI Views] Check menu() in ZoomView

AppMenuView::menu() documents that it may be null during shutdown, but ZoomView
doesn't check it. Add a check.

BUG=594055

Committed: https://crrev.com/03ad6f33b5e9d4f3b22cfd6cda5fab9002fe52d6
Cr-Commit-Position: refs/heads/master@{#381329}
==========

[commit-bot: I haz the power, 2016-03-15 21:58:06]

Patchset 1 (id:??) landed as
https://crrev.com/03ad6f33b5e9d4f3b22cfd6cda5fab9002fe52d6
Cr-Commit-Position: refs/heads/master@{#381329}