Allow stacking below windows with layers with NULL delegates.

Allow stacking below windows with layers with NULL delegates.

BUG=313301
TEST=WindowTest.StackWindowAtBottomBelowWindowWhoseLayerHasNoDelegate

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=232946

[flackr, 2013-11-04 22:04:12]

PTAL, thanks.

https://codereview.chromium.org/58343004/diff/1/ui/aura/window.cc
File ui/aura/window.cc (right):

https://codereview.chromium.org/58343004/diff/1/ui/aura/window.cc#newcode897
ui/aura/window.cc:897: final_target_i - 1]->layer()
This change should make the check in 901 unnecessary.

[pkotwicz, 2013-11-04 22:13:05]

LGTM

[flackr, 2013-11-04 22:16:07]

Thanks!

+sky, PTAL.

[sky, 2013-11-04 22:24:20]

LGTM

[commit-bot: I haz the power, 2013-11-04 22:50:20]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/flackr@chromium.org/58343004/1

[commit-bot: I haz the power, 2013-11-05 01:48:45]

Retried try job too often on win_rel for step(s) browser_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2013-11-05 02:40:01]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/flackr@chromium.org/58343004/1

[commit-bot: I haz the power, 2013-11-05 03:28:39]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/flackr@chromium.org/58343004/1

[commit-bot: I haz the power, 2013-11-05 07:26:02]

Change committed as 232946