Quit the message loop by default in ShellConnectionLost when ApplicationRunner is used

components/resource_provider/resource_provider_test_app.cc

Index: components/resource_provider/resource_provider_test_app.cc
diff --git a/components/resource_provider/resource_provider_test_app.cc b/components/resource_provider/resource_provider_test_app.cc
index ab0147f450c1b344b21ddc669dec6d4b4a44a609..2c7835233f85644d138173e4451719702e0cde6d 100644
--- a/components/resource_provider/resource_provider_test_app.cc
+++ b/components/resource_provider/resource_provider_test_app.cc
@@ -99,9 +99,6 @@ class TestApp : public mojo::ShellClient,
     connection->AddInterface<mojom::Test>(this);
     return true;
   }
-  void ShellConnectionLost() override {
-    base::MessageLoop::current()->QuitWhenIdle();
-  }
 
   // InterfaceFactory<mojom::Test>:
   void Create(mojo::Connection* connection,