Add EventTargeterDelegate for EventTargeter in mus-ws.

services/ui/ws/event_targeter.h

 // Copyright 2017 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 SERVICES_UI_WS_EVENT_TARGETER_H_
 #define SERVICES_UI_WS_EVENT_TARGETER_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 
 namespace gfx {
 class Point;
 }
 
 namespace ui {
 class LocatedEvent;
 
 namespace ws {
 struct DeepestWindow;
-class EventDispatcherDelegate;
+class EventTargeterDelegate;
 class ModalWindowController;
 class ServerWindow;
 
 // Keeps track of state associated with an active pointer.
 struct PointerTarget {
   PointerTarget()
       : window(nullptr),
         is_mouse_event(false),
         in_nonclient_area(false),
         is_pointer_down(false) {}
 
   // The target window, which may be null. null is used in two situations:
   // when there is no valid window target, or there was a target but the
   // window is destroyed before a corresponding release/cancel.
   ServerWindow* window;
 
   bool is_mouse_event;
 
   // Did the pointer event start in the non-client area.
   bool in_nonclient_area;
 
   bool is_pointer_down;
 };
 
 // Finds the PointerTarget for an event or the DeepestWindow for a location.
 class EventTargeter {
  public:
-  EventTargeter(EventDispatcherDelegate* event_dispatcher_delegate,
+  EventTargeter(EventTargeterDelegate* event_targeter_delegate,
                 ModalWindowController* modal_window_controller);
   ~EventTargeter();
 
   // Returns a PointerTarget for the supplied |event|. If there is no valid
   // event target for the specified location |window| in the returned value is
   // null.
   PointerTarget PointerTargetForEvent(const ui::LocatedEvent& event,
                                       int64_t* display_id);
 
   // Returns a DeepestWindow for the supplied |location|. If there is no valid
   // root window, |window| in the returned value is null.
   DeepestWindow FindDeepestVisibleWindowForEvents(gfx::Point* location,
                                                   int64_t* display_id);
 
  private:
-  EventDispatcherDelegate* event_dispatcher_delegate_;
+  EventTargeterDelegate* event_targeter_delegate_;
   ModalWindowController* modal_window_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(EventTargeter);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_EVENT_TARGETER_H_