Move //mojo/shell to //shell

shell/external_application_listener_win.h

 // 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.
 
-#ifndef MOJO_SHELL_EXTERNAL_APPLICATION_LISTENER_WIN_H_
-#define MOJO_SHELL_EXTERNAL_APPLICATION_LISTENER_WIN_H_
+#ifndef SHELL_EXTERNAL_APPLICATION_LISTENER_WIN_H_
+#define SHELL_EXTERNAL_APPLICATION_LISTENER_WIN_H_
 
-#include "mojo/shell/external_application_listener.h"
+#include "shell/external_application_listener.h"
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
 
 namespace mojo {
 namespace shell {
 
 // External application registration is not supported on Windows, hence this
 // stub.
 class ExternalApplicationListenerStub : public ExternalApplicationListener {
  public:
   ExternalApplicationListenerStub();
   virtual ~ExternalApplicationListenerStub() override;
 
   void ListenInBackground(const base::FilePath& listen_socket_path,
                           const RegisterCallback& register_callback) override;
   void ListenInBackgroundWithErrorCallback(
       const base::FilePath& listen_socket_path,
       const RegisterCallback& register_callback,
       const ErrorCallback& error_callback) override;
   void WaitForListening() override;
 };
 
 }  // namespace shell
 }  // namespace mojo
 
-#endif  // MOJO_SHELL_EXTERNAL_APPLICATION_LISTENER_WIN_H_
+#endif  // SHELL_EXTERNAL_APPLICATION_LISTENER_WIN_H_