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

components/resource_provider/resource_provider_app.cc

Index: components/resource_provider/resource_provider_app.cc
diff --git a/components/resource_provider/resource_provider_app.cc b/components/resource_provider/resource_provider_app.cc
index 18b4e42f3a6ea005fa72cb6ad30b2b728792f73a..cd16a9889432c95bc516c82612aa3fc6952c4063 100644
--- a/components/resource_provider/resource_provider_app.cc
+++ b/components/resource_provider/resource_provider_app.cc
@@ -37,11 +37,6 @@ bool ResourceProviderApp::AcceptConnection(mojo::Connection* connection) {
   return true;
 }
 
-void ResourceProviderApp::ShellConnectionLost() {
-  // TODO: This should exit cleanly.
-  _exit(1);
-}
-
 void ResourceProviderApp::Create(
     mojo::Connection* connection,
     mojo::InterfaceRequest<ResourceProvider> request) {