Changes layer reparenting to happen after a window parent is changed in aura::Window::AddChild

ui/aura/window.cc

Index: ui/aura/window.cc
diff --git a/ui/aura/window.cc b/ui/aura/window.cc
index 899fdfdb047c14b76f8a72ce270380c75eb911c7..4bb4bbdfab6b7c2dbc4a5198c8ad7b63275d3ad3 100644
--- a/ui/aura/window.cc
+++ b/ui/aura/window.cc
@@ -516,13 +516,14 @@ void Window::AddChild(Window* child) {
 
   gfx::Vector2d offset;
   aura::Window* ancestor_with_layer = GetAncestorWithLayer(&offset);
+
+  child->parent_ = this;
+
   if (ancestor_with_layer) {
     offset += child->bounds().OffsetFromOrigin();
     child->ReparentLayers(ancestor_with_layer->layer(), offset);
   }
 
-  child->parent_ = this;
-
   children_.push_back(child);
   if (layout_manager_)
     layout_manager_->OnWindowAddedToLayout(child);