Revert of Refactor and move ash independent nested accelerator code to ui/wm/core

ash/accelerators/nested_dispatcher_controller.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 ASH_ACCELERATORS_NESTED_DISPATCHER_CONTROLLER_H_
+#define ASH_ACCELERATORS_NESTED_DISPATCHER_CONTROLLER_H_
+
+#include "ash/ash_export.h"
+#include "base/callback.h"
+#include "base/message_loop/message_loop.h"
+#include "ui/wm/public/dispatcher_client.h"
+
+namespace ash {
+
+class AcceleratorDispatcher;
+
+// Creates a dispatcher which wraps another dispatcher.
+// The outer dispatcher runs first and performs ash specific handling.
+// If it does not consume the event it forwards the event to the nested
+// dispatcher.
+class ASH_EXPORT NestedDispatcherController
+    : public aura::client::DispatcherClient {
+ public:
+  NestedDispatcherController();
+  virtual ~NestedDispatcherController();
+
+  // aura::client::DispatcherClient:
+  virtual void RunWithDispatcher(
+      base::MessagePumpDispatcher* dispatcher) OVERRIDE;
+  virtual void QuitNestedMessageLoop() OVERRIDE;
+
+ private:
+  base::Closure quit_closure_;
+  scoped_ptr<AcceleratorDispatcher> accelerator_dispatcher_;
+
+  DISALLOW_COPY_AND_ASSIGN(NestedDispatcherController);
+};
+
+}  // namespace ash
+
+#endif  // ASH_ACCELERATORS_NESTED_DISPATCHER_CONTROLLER_H_