cashew: reset local counter on plan transition

src/service_manager_impl.h

Index: src/service_manager_impl.h
diff --git a/src/service_manager_impl.h b/src/service_manager_impl.h
index 2ad53be540391366c2c78b22e1b312a3ed7ff08b..806ed2817432e5620b3b46b09861aca904b67ea9 100644
--- a/src/service_manager_impl.h
+++ b/src/service_manager_impl.h
@@ -60,9 +60,9 @@ class ServiceManagerImpl : public ServiceManager,
                                    const DBus::Variant& new_value);
 
     // Service methods
-
-    // a child Service wants us to emit an update about its data plans
     virtual void EmitDataPlansUpdate(const Service& service);
+    virtual void OnDataPlanInactive(const Service& service,
+                                    const DataPlan& plan);
 
   private:
     // D-Bus connection owned by our creator