Window prerequisites for ShelfWindowWatcher panel support.

components/exo/wayland/server.cc

Index: components/exo/wayland/server.cc
diff --git a/components/exo/wayland/server.cc b/components/exo/wayland/server.cc
index 7b3d47ed80040647c1ddc52cbfadf1d94d6f513a..75f0db687bbc266163b49a5441cf60ef4f78d4b2 100644
--- a/components/exo/wayland/server.cc
+++ b/components/exo/wayland/server.cc
@@ -967,7 +967,8 @@ void shell_surface_set_title(wl_client* client,
 void shell_surface_set_class(wl_client* client,
                              wl_resource* resource,
                              const char* clazz) {
-  GetUserDataAs<ShellSurface>(resource)->SetApplicationId(clazz);
+  views::Widget* widget = GetUserDataAs<ShellSurface>(resource)->GetWidget();
+  ShellSurface::SetApplicationId(widget->GetNativeWindow(), clazz);
 }
 
 const struct wl_shell_surface_interface shell_surface_implementation = {
@@ -1176,7 +1177,8 @@ void xdg_surface_set_title(wl_client* client,
 void xdg_surface_set_add_id(wl_client* client,
                             wl_resource* resource,
                             const char* app_id) {
-  GetUserDataAs<ShellSurface>(resource)->SetApplicationId(app_id);
+  views::Widget* widget = GetUserDataAs<ShellSurface>(resource)->GetWidget();
+  ShellSurface::SetApplicationId(widget->GetNativeWindow(), app_id);
 }
 
 void xdg_surface_show_window_menu(wl_client* client,
@@ -1440,7 +1442,8 @@ void remote_surface_destroy(wl_client* client, wl_resource* resource) {
 void remote_surface_set_app_id(wl_client* client,
                                wl_resource* resource,
                                const char* app_id) {
-  GetUserDataAs<ShellSurface>(resource)->SetApplicationId(app_id);
+  views::Widget* widget = GetUserDataAs<ShellSurface>(resource)->GetWidget();
+  ShellSurface::SetApplicationId(widget->GetNativeWindow(), app_id);
 }
 
 void remote_surface_set_window_geometry(wl_client* client,