ash/wm: Remove dead code.

ui/wm/public/dispatcher_client.h

-// Copyright (c) 2012 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 UI_WM_PUBLIC_DISPATCHER_CLIENT_H_
-#define UI_WM_PUBLIC_DISPATCHER_CLIENT_H_
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/message_loop/message_pump_dispatcher.h"
-#include "ui/aura/aura_export.h"
-
-namespace aura {
-class Window;
-namespace client {
-
-class DispatcherClient;
-
-// A base::RunLoop like object for running a nested message-loop with a
-// specified DispatcherClient and a MessagePumpDispatcher.
-class AURA_EXPORT DispatcherRunLoop {
- public:
-  DispatcherRunLoop(DispatcherClient* client,
-                    base::MessagePumpDispatcher* dispatcher);
-  ~DispatcherRunLoop();
-
-  void Run();
-  base::Closure QuitClosure();
-  void Quit();
-
- private:
-  base::Closure run_closure_;
-  base::Closure quit_closure_;
-
-  DISALLOW_COPY_AND_ASSIGN(DispatcherRunLoop);
-};
-
-// An interface implemented by an object which handles nested dispatchers.
-class AURA_EXPORT DispatcherClient {
- public:
-  virtual ~DispatcherClient() {}
-
- protected:
-  friend class DispatcherRunLoop;
-
-  virtual void PrepareNestedLoopClosures(
-      base::MessagePumpDispatcher* dispatcher,
-      base::Closure* run_closure,
-      base::Closure* quit_closure) = 0;
-};
-
-AURA_EXPORT void SetDispatcherClient(Window* root_window,
-                                     DispatcherClient* client);
-AURA_EXPORT DispatcherClient* GetDispatcherClient(Window* root_window);
-
-}  // namespace client
-}  // namespace aura
-
-#endif  // UI_WM_PUBLIC_DISPATCHER_CLIENT_H_