Fix NativeWidgetMacTest.HideAndShowExternally

Fix NativeWidgetMacTest.HideAndShowExternally

This regressed in r308886 because the unit test changed from having no
activation policy to having a "Regular" activation policy.

With a regular activation policy, calls to [NSApp hide/show*:] are
asynchronous, so the run loop needs to be flushed afterwards.

Also adds an extra check for [NSWindow makeKeyAndOrderFront:]. It
doesn't need a runloop flush for the visibility change, but it should
have coverage anyway.

BUG=378134
Committed: https://crrev.com/bc8f60252ea3b2a1d53cd058c32ae99d8d1d0ad8
Cr-Commit-Position: refs/heads/master@{#309478}

[tapted, 2014-12-22 10:38:09]

tapted@chromium.org changed reviewers:
+ andresantoso@chromium.org

[tapted, 2014-12-22 10:41:04]

Hi Andre, please take a look.

[Andre, 2014-12-22 19:31:00]

lgtm

https://codereview.chromium.org/809903009/diff/1/ui/views/widget/native_widge...
File ui/views/widget/native_widget_mac_unittest.mm (right):

https://codereview.chromium.org/809903009/diff/1/ui/views/widget/native_widge...
ui/views/widget/native_widget_mac_unittest.mm:92: // calls superfluous, but
don't hurt.
calls are superfluous.

[tapted, 2014-12-22 21:58:04]

https://codereview.chromium.org/809903009/diff/1/ui/views/widget/native_widge...
File ui/views/widget/native_widget_mac_unittest.mm (right):

https://codereview.chromium.org/809903009/diff/1/ui/views/widget/native_widge...
ui/views/widget/native_widget_mac_unittest.mm:92: // calls superfluous, but
don't hurt.
On 2014/12/22 19:31:00, Andre wrote:
> calls are superfluous.

Done.

[tapted, 2014-12-22 21:58:07]

The CQ bit was checked by tapted@chromium.org

[commit-bot: I haz the power, 2014-12-22 21:59:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/809903009/20001

[commit-bot: I haz the power, 2014-12-22 22:52:28]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2014-12-22 22:54:21]

Patchset 2 (id:??) landed as
https://crrev.com/bc8f60252ea3b2a1d53cd058c32ae99d8d1d0ad8
Cr-Commit-Position: refs/heads/master@{#309478}