GRC: Added Tab coordination units behind a feature flag

services/resource_coordinator/public/cpp/resource_coordinator_interface.h

Index: services/resource_coordinator/public/cpp/resource_coordinator_interface.h
diff --git a/services/resource_coordinator/public/cpp/resource_coordinator_interface.h b/services/resource_coordinator/public/cpp/resource_coordinator_interface.h
index 95d6748c76cd7d9566f104d35fc002bfe3ce9845..fe5806dbbfc49b422779e7aae9852da9d3b2fabd 100644
--- a/services/resource_coordinator/public/cpp/resource_coordinator_interface.h
+++ b/services/resource_coordinator/public/cpp/resource_coordinator_interface.h
@@ -20,7 +20,8 @@ namespace resource_coordinator {
 
 using EventType = mojom::EventType;
 
-class ResourceCoordinatorInterface {
+class SERVICES_RESOURCE_COORDINATOR_PUBLIC_CPP_EXPORT
+    ResourceCoordinatorInterface {
  public:
   ResourceCoordinatorInterface(service_manager::Connector* connector,
                                const CoordinationUnitType& type);