Change primordial pipes to ShellClient

mojo/shell/public/cpp/lib/application_runner.cc

 // Copyright 2014 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/shell/public/cpp/application_runner.h"
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 63 matching lines @@
     init_base =
         !base::CommandLine::ForCurrentProcess()->HasSwitch("single-process");
   }
   return Run(shell_client_request_handle, init_base);
 }
 
 void ApplicationRunner::DestroyShellConnection() {
   connection_.reset();
 }
 
+void ApplicationRunner::Quit() {
+  base::MessageLoop::current()->QuitWhenIdle();
+}
+
 }  // namespace mojo