Adds DesktopWindowTreeHostMus

ui/views/test/native_widget_factory_aura_mus.cc

Index: ui/views/test/native_widget_factory_aura_mus.cc
diff --git a/ui/views/test/native_widget_factory_mus.cc b/ui/views/test/native_widget_factory_aura_mus.cc
similarity index 69%
copy from ui/views/test/native_widget_factory_mus.cc
copy to ui/views/test/native_widget_factory_aura_mus.cc
index 9469c0c4a443dc56359312422a04a15bcab6d670..33b7a6163dbc9d031c0e8010e20a20d8a4133727 100644
--- a/ui/views/test/native_widget_factory_mus.cc
+++ b/ui/views/test/native_widget_factory_aura_mus.cc
@@ -4,7 +4,7 @@
 
 #include "ui/views/test/native_widget_factory.h"
 
-#include "ui/views/mus/window_manager_connection.h"
+#include "ui/views/mus/mus_client.h"
 
 namespace views {
 namespace test {
@@ -13,8 +13,7 @@ NativeWidget* CreatePlatformDesktopNativeWidgetImpl(
     const Widget::InitParams& init_params,
     Widget* widget,
     bool* destroyed) {
-  return WindowManagerConnection::Get()->CreateNativeWidgetMus(
-      std::map<std::string, std::vector<uint8_t>>(), init_params, widget);
+  return MusClient::Get()->CreateNativeWidget(init_params, widget);
 }
 
 }  // namespace test