Move window_manager service implementation to //services

mojo/services/window_manager/view_event_dispatcher.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_SERVICES_WINDOW_MANAGER_VIEW_EVENT_DISPATCHER_H_
-#define MOJO_SERVICES_WINDOW_MANAGER_VIEW_EVENT_DISPATCHER_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "ui/events/event_processor.h"
-#include "ui/events/event_target.h"
-
-namespace mojo {
-
-class ViewTarget;
-
-class ViewEventDispatcher : public ui::EventProcessor {
- public:
-  ViewEventDispatcher();
-  ~ViewEventDispatcher() override;
-
-  void SetRootViewTarget(ViewTarget* root_view_target);
-
- private:
-  // Overridden from ui::EventProcessor:
-  ui::EventTarget* GetRootTarget() override;
-  void OnEventProcessingStarted(ui::Event* event) override;
-
-  // Overridden from ui::EventDispatcherDelegate.
-  bool CanDispatchToTarget(ui::EventTarget* target) override;
-  ui::EventDispatchDetails PreDispatchEvent(ui::EventTarget* target,
-                                            ui::Event* event) override;
-  ui::EventDispatchDetails PostDispatchEvent(
-      ui::EventTarget* target, const ui::Event& event) override;
-
-  // We keep a weak reference to ViewTarget*, which corresponds to the root of
-  // the mojo::View tree.
-  ViewTarget* root_view_target_;
-
-  ViewTarget* event_dispatch_target_;
-  ViewTarget* old_dispatch_target_;
-
-  DISALLOW_COPY_AND_ASSIGN(ViewEventDispatcher);
-};
-
-}  // namespace mojo
-
-#endif  // MOJO_SERVICES_WINDOW_MANAGER_VIEW_EVENT_DISPATCHER_H_