Extracts parameters to WindowTreeHostMus into structure

ui/views/mus/desktop_window_tree_host_mus.h

Index: ui/views/mus/desktop_window_tree_host_mus.h
diff --git a/ui/views/mus/desktop_window_tree_host_mus.h b/ui/views/mus/desktop_window_tree_host_mus.h
index 7bf6d3903040171e6ddfdaf2a0d7082c28c3bf57..e1bfb1d00c4dbf87c6b8da13cb9336a65a6a3848 100644
--- a/ui/views/mus/desktop_window_tree_host_mus.h
+++ b/ui/views/mus/desktop_window_tree_host_mus.h
@@ -33,10 +33,9 @@ class VIEWS_MUS_EXPORT DesktopWindowTreeHostMus
       public aura::WindowTreeHostMus {
  public:
   DesktopWindowTreeHostMus(
+      std::unique_ptr<aura::WindowTreeHostMusInitParams> init_params,
       internal::NativeWidgetDelegate* native_widget_delegate,
-      DesktopNativeWidgetAura* desktop_native_widget_aura,
-      const cc::FrameSinkId& frame_sink_id,
-      const std::map<std::string, std::vector<uint8_t>>* mus_properties);
+      DesktopNativeWidgetAura* desktop_native_widget_aura);
   ~DesktopWindowTreeHostMus() override;
 
   // Called when the window was deleted on the server.