Service Manager: Rework Service and ServiceContext lifetime

services/service_manager/public/cpp/interface_registry.h

Index: services/service_manager/public/cpp/interface_registry.h
diff --git a/services/service_manager/public/cpp/interface_registry.h b/services/service_manager/public/cpp/interface_registry.h
index fa7b898226a528c2445a6706bd2088c7d4cc0199..5872478342f91bbbd09a4e500aa5a1b74f4bae99 100644
--- a/services/service_manager/public/cpp/interface_registry.h
+++ b/services/service_manager/public/cpp/interface_registry.h
@@ -150,7 +150,9 @@ class InterfaceRegistry : public mojom::InterfaceProvider {
   // Populates a set with the interface names this registry can bind.
   void GetInterfaceNames(std::set<std::string>* interface_names);
 
-  // Sets a closure to be run when the InterfaceProvider pipe is closed.
+  // Sets a closure to be run when the InterfaceProvider pipe is closed. Note
+  // that by the time any added closure is invoked, the InterfaceRegistry may
+  // have been deleted.
   void AddConnectionLostClosure(const base::Closure& connection_lost_closure);
 
  private: