ash: fix regression where ctrl+n put new window on wrong desktop

ui/aura/client/aura_constants.h

Index: ui/aura/client/aura_constants.h
diff --git a/ui/aura/client/aura_constants.h b/ui/aura/client/aura_constants.h
index 11a46272e3c51c88544b6ab70e7cfc8cb752af16..79adb6d431ad611033878b95743af65fa80b2e68 100644
--- a/ui/aura/client/aura_constants.h
+++ b/ui/aura/client/aura_constants.h
@@ -49,6 +49,9 @@ AURA_EXPORT extern const WindowProperty<int>* const kAppType;
 // A property key to store if a window is a constrained window or not.
 AURA_EXPORT extern const WindowProperty<bool>* const kConstrainedWindowKey;
 
+// A property key to store if a window was created by a user gesture.
+AURA_EXPORT extern const WindowProperty<bool>* const kCreatedByUserGesture;
+
 // A property key to indicate that a window should show that it deserves
 // attention.
 AURA_EXPORT extern const aura::WindowProperty<bool>* const kDrawAttentionKey;