linux_aura: Close window when the OS requests it.

linux_aura: Close window when the OS requests it.

Alt-F4 key events are handled by the window manager, who then sends an X11
message telling us that we should close. This used to be hooked up, but it
looks like it broke when we merged with the crossplatform
DesktopNativeWidgetAura code that we also use on Windows.

BUG=176783
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=202758

[sky, 2013-05-29 00:05:31]

https://codereview.chromium.org/15827009/diff/1/ui/views/widget/desktop_aura/...
File ui/views/widget/desktop_aura/desktop_native_widget_aura.cc (right):

https://codereview.chromium.org/15827009/diff/1/ui/views/widget/desktop_aura/...
ui/views/widget/desktop_aura/desktop_native_widget_aura.cc:238:
root_window_->AddRootWindowObserver(this);
I like things that are balanced. Can you remove the observer too?

[Elliot Glaysher, 2013-05-29 00:11:05]

https://codereview.chromium.org/15827009/diff/1/ui/views/widget/desktop_aura/...
File ui/views/widget/desktop_aura/desktop_native_widget_aura.cc (right):

https://codereview.chromium.org/15827009/diff/1/ui/views/widget/desktop_aura/...
ui/views/widget/desktop_aura/desktop_native_widget_aura.cc:238:
root_window_->AddRootWindowObserver(this);
On 2013/05/29 00:05:31, sky wrote:
> I like things that are balanced. Can you remove the observer too?

Done.

[sky, 2013-05-29 00:11:48]

LGTM

[commit-bot: I haz the power, 2013-05-29 00:12:56]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/erg@chromium.org/15827009/19001

[commit-bot: I haz the power, 2013-05-29 02:59:23]

Change committed as 202758