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

mojo/services/network/network_service_delegate.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/services/network/network_service_delegate.h"
 
 #include <utility>
 
 #include "base/at_exit.h"
 #include "base/base_paths.h"
@@ skipping 60 matching lines @@
 
 bool NetworkServiceDelegate::AcceptConnection(Connection* connection) {
   DCHECK(context_);
   connection->AddInterface<CookieStore>(this);
   connection->AddInterface<NetworkService>(this);
   connection->AddInterface<URLLoaderFactory>(this);
   connection->AddInterface<WebSocketFactory>(this);
   return true;
 }
 
+void NetworkServiceDelegate::ShellConnectionLost() {
+  base::MessageLoop::current()->QuitWhenIdle();
+}
+
 void NetworkServiceDelegate::Create(Connection* connection,
                                     InterfaceRequest<NetworkService> request) {
   new NetworkServiceImpl(ref_factory_.CreateRef(), std::move(request));
 }
 
 void NetworkServiceDelegate::Create(Connection* connection,
                                     InterfaceRequest<CookieStore> request) {
   // TODO(beng): need to find a way to get content origin.
   new CookieStoreImpl(
       context_.get(), GURL(),
@@ skipping 15 matching lines @@
 }
 
 void NetworkServiceDelegate::Quit() {
   // Destroy the NetworkContext now as it requires MessageLoop::current() upon
   // destruction and it is the last moment we know for sure that it is
   // running.
   context_.reset();
 }
 
 }  // namespace mojo