Makes resolving ids work correctly in new world

components/mus/ws/connection_manager.h

Index: components/mus/ws/connection_manager.h
diff --git a/components/mus/ws/connection_manager.h b/components/mus/ws/connection_manager.h
index 0d934885e4027207b2daff80980298df0099e824..9b7d5f4349054c412ed60a76347e348492442060 100644
--- a/components/mus/ws/connection_manager.h
+++ b/components/mus/ws/connection_manager.h
@@ -242,6 +242,10 @@ class ConnectionManager : public ServerWindowDelegate,
   void OnScheduleWindowPaint(const ServerWindow* window) override;
   const ServerWindow* GetRootWindow(const ServerWindow* window) const override;
   void ScheduleSurfaceDestruction(ServerWindow* window) override;
+  ServerWindow* FindWindowForSurface(
+      const ServerWindow* ancestor,
+      mojom::SurfaceType surface_type,
+      const ClientWindowId& client_window_id) override;
 
   // Overridden from ServerWindowObserver:
   void OnWindowDestroyed(ServerWindow* window) override;