| Index: ui/views/mus/native_widget_mus.cc | 
| diff --git a/ui/views/mus/native_widget_mus.cc b/ui/views/mus/native_widget_mus.cc | 
| index 7bcc4ac7a17206250df694f2adab5f9ba3fdd336..3f2e687781d3d6b8b84772df1b3a4def20fc69e8 100644 | 
| --- a/ui/views/mus/native_widget_mus.cc | 
| +++ b/ui/views/mus/native_widget_mus.cc | 
| @@ -435,6 +435,8 @@ void NativeWidgetMus::UpdateClientArea() { | 
| void NativeWidgetMus::ConfigurePropertiesForNewWindow( | 
| const Widget::InitParams& init_params, | 
| std::map<std::string, std::vector<uint8_t>>* properties) { | 
| +  properties->insert(init_params.mus_properties.begin(), | 
| +                     init_params.mus_properties.end()); | 
| if (!init_params.bounds.IsEmpty()) { | 
| (*properties)[mus::mojom::WindowManager::kUserSetBounds_Property] = | 
| mojo::ConvertTo<std::vector<uint8_t>>(init_params.bounds); | 
|  |