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

content/common/mojo/mojo_shell_connection_impl.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 "content/common/mojo/mojo_shell_connection_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 108 matching lines @@
                                          uint32_t id) {
 }
 
 bool MojoShellConnectionImpl::AcceptConnection(mojo::Connection* connection) {
   bool found = false;
   for (auto listener : listeners_)
     found |= listener->AcceptConnection(connection);
   return found;
 }
 
+void MojoShellConnectionImpl::ShellConnectionLost() {
+  LOG(ERROR) << "Shell connection lost.";
+}
+
 mojo::Connector* MojoShellConnectionImpl::GetConnector() {
   DCHECK(shell_connection_);
   return shell_connection_->connector();
 }
 
 bool MojoShellConnectionImpl::UsingExternalShell() const {
   return external_;
 }
 
 void MojoShellConnectionImpl::AddListener(Listener* listener) {
@@ skipping 16 matching lines @@
 // static
 void MojoShellConnection::Destroy() {
   // This joins the shell controller thread.
   delete Get();
   lazy_tls_ptr.Pointer()->Set(nullptr);
 }
 
 MojoShellConnection::~MojoShellConnection() {}
 
 }  // namespace content