Converts some services to use aura-mus

ui/views/widget/desktop_aura/desktop_native_widget_aura.cc

Index: ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
diff --git a/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc b/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
index b3ec277e25a186d8fa4f10eb724c5ff5edc6b325..8935580bd28fb29fbf8d3dc48611c777bab44011 100644
--- a/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
+++ b/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
@@ -537,7 +537,9 @@ void DesktopNativeWidgetAura::InitNativeWidget(
       GetWidget()->GetRootView()));
 }
 
-void DesktopNativeWidgetAura::OnWidgetInitDone() {}
+void DesktopNativeWidgetAura::OnWidgetInitDone() {
+  desktop_window_tree_host_->OnWidgetInitDone();
+}
 
 NonClientFrameView* DesktopNativeWidgetAura::CreateNonClientFrameView() {
   return desktop_window_tree_host_->CreateNonClientFrameView();