Makes DefaultContainerLayoutManager ignore windows with transient

ui/aura_shell/default_container_layout_manager.cc

Index: ui/aura_shell/default_container_layout_manager.cc
diff --git a/ui/aura_shell/default_container_layout_manager.cc b/ui/aura_shell/default_container_layout_manager.cc
index 98d3dc31bd0eddcb7dd6756d7ac40c3bee292c0e..5fd34bdfeb552596d9ec802fbf9c19988a172e6b 100644
--- a/ui/aura_shell/default_container_layout_manager.cc
+++ b/ui/aura_shell/default_container_layout_manager.cc
@@ -102,7 +102,8 @@ void DefaultContainerLayoutManager::OnWindowResized() {
 void DefaultContainerLayoutManager::OnWindowAdded(aura::Window* child) {
   intptr_t type = reinterpret_cast<intptr_t>(
       ui::ViewProp::GetValue(child, views::NativeWidgetAura::kWindowTypeKey));
-  if (type != views::Widget::InitParams::TYPE_WINDOW)
+  if (type != views::Widget::InitParams::TYPE_WINDOW ||
+      child->transient_parent())
     return;
 
   AutoReset<bool> reset(&ignore_calculate_bounds_, true);
@@ -144,7 +145,7 @@ void DefaultContainerLayoutManager::CalculateBoundsForChild(
   intptr_t type = reinterpret_cast<intptr_t>(
       ui::ViewProp::GetValue(child, views::NativeWidgetAura::kWindowTypeKey));
   if (type != views::Widget::InitParams::TYPE_WINDOW ||
-      ignore_calculate_bounds_)
+      ignore_calculate_bounds_ || child->transient_parent())
     return;
 
   // If a drag window is requesting bounds, make sure its attached to