Updates PointerEventRouter to handle switching move type

ui/views/mus/window_manager_connection.h

Index: ui/views/mus/window_manager_connection.h
diff --git a/ui/views/mus/window_manager_connection.h b/ui/views/mus/window_manager_connection.h
index 0524fd994cf1cfaa7d11f7fd161525c9100a9750..6b2de1d70feb939e59d0e11438b32d1fb0908727 100644
--- a/ui/views/mus/window_manager_connection.h
+++ b/ui/views/mus/window_manager_connection.h
@@ -66,6 +66,7 @@ class VIEWS_MUS_EXPORT WindowManagerConnection
   }
   shell::Connector* connector() { return connector_; }
   ui::GpuService* gpu_service() { return gpu_service_.get(); }
+  ui::WindowTreeClient* client() { return client_.get(); }
 
   ui::Window* NewWindow(
       const std::map<std::string, std::vector<uint8_t>>& properties);