Cascade shutdown of instances

mash/shell/shell_application_delegate.h

 // 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.
 
 #ifndef MASH_SHELL_SHELL_APPLICATION_DELEGATE_H_
 #define MASH_SHELL_SHELL_APPLICATION_DELEGATE_H_
 
 #include <map>
 
 #include "base/callback.h"
@@ skipping 21 matching lines @@
   ~ShellApplicationDelegate() override;
 
  private:
   // mojo::ShellClient:
   void Initialize(mojo::Connector* connector,
                   const mojo::Identity& identity,
                   uint32_t id) override;
   bool AcceptConnection(mojo::Connection* connection) override;
 
   // mash::shell::mojom::Shell:
+  void Logout() override;
+  void SwitchUser() override;
   void AddScreenlockStateListener(
       mojom::ScreenlockStateListenerPtr listener) override;
   void LockScreen() override;
   void UnlockScreen() override;
 
   // mojo::InterfaceFactory<mash::shell::mojom::Shell>:
   void Create(mojo::Connection* connection,
               mojo::InterfaceRequest<mash::shell::mojom::Shell> r) override;
 
   void StartWindowManager();
@@ skipping 15 matching lines @@
   mojo::BindingSet<mash::shell::mojom::Shell> bindings_;
   mojo::InterfacePtrSet<mojom::ScreenlockStateListener> screenlock_listeners_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellApplicationDelegate);
 };
 
 }  // namespace shell
 }  // namespace mash
 
 #endif  // MASH_SHELL_SHELL_APPLICATION_DELEGATE_H_