Attempt 2 at Fixes crash introduced @ 153047 (you can hit crash by maximizing a

ash/wm/window_animations.h

Index: ash/wm/window_animations.h
diff --git a/ash/wm/window_animations.h b/ash/wm/window_animations.h
index 9ddbbaceefc4dd8ebc75d53f00b148d8dcb4f827..192b0e7ca44212f176016f5cdacb3b2e0fdaea83 100644
--- a/ash/wm/window_animations.h
+++ b/ash/wm/window_animations.h
@@ -119,10 +119,6 @@ ASH_EXPORT base::TimeDelta GetCrossFadeDuration(const gfx::Rect& old_bounds,
 ASH_EXPORT bool AnimateOnChildWindowVisibilityChanged(
     aura::Window* window, bool visible);
 
-// Delay the old layer deletion so that test can verify the behavior of
-// old layer.
-ASH_EXPORT void SetDelayedOldLayerDeletionInCrossFadeForTest(bool value);
-
 }  // namespace internal
 }  // namespace ash