Add EventTargeterDelegate for EventTargeter in mus-ws.

services/ui/ws/event_dispatcher.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 SERVICES_UI_WS_EVENT_DISPATCHER_H_
 #define SERVICES_UI_WS_EVENT_DISPATCHER_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <utility>
 
 #include "base/macros.h"
 #include "services/ui/common/types.h"
 #include "services/ui/public/interfaces/cursor/cursor.mojom.h"
 #include "services/ui/public/interfaces/window_manager.mojom.h"
 #include "services/ui/ws/drag_cursor_updater.h"
 #include "services/ui/ws/event_targeter.h"
+#include "services/ui/ws/event_targeter_delegate.h"
 #include "services/ui/ws/modal_window_controller.h"
 #include "services/ui/ws/server_window_observer.h"
 #include "ui/gfx/geometry/rect_f.h"
 
 namespace ui {
 class Event;
 class KeyEvent;
 class LocatedEvent;
 class PointerEvent;
 
 namespace ws {
 
 class Accelerator;
 class DragController;
 class DragSource;
 class DragTargetConnection;
 class EventDispatcherDelegate;
 class ServerWindow;
 
 namespace test {
 class EventDispatcherTestApi;
 }
 
 // Handles dispatching events to the right location as well as updating focus.
-class EventDispatcher : public ServerWindowObserver, public DragCursorUpdater {
+class EventDispatcher : public ServerWindowObserver,
+                        public DragCursorUpdater,
+                        public EventTargeterDelegate {
  public:
   enum class AcceleratorMatchPhase {
     // Both pre and post should be considered.
     ANY,
 
     // PRE_TARGETs are not considered, only the actual target and any
     // accelerators registered with POST_TARGET.
     POST_ONLY,
   };
 
@@ skipping 86 matching lines @@
 
   // Processes the supplied event, informing the delegate as approriate. This
   // may result in generating any number of events. If |match_phase| is
   // ANY and there is a matching accelerator with PRE_TARGET found, than only
   // OnAccelerator() is called. The expectation is after the PRE_TARGET has been
   // handled this is again called with an AcceleratorMatchPhase of POST_ONLY.
   void ProcessEvent(const ui::Event& event,
                     const int64_t display_id,
                     AcceleratorMatchPhase match_phase);
 
+  // EventTargeterDelegate:
+  ServerWindow* GetRootWindowContaining(gfx::Point* location_in_display,
+                                        int64_t* display_id) override;
+
  private:
   friend class test::EventDispatcherTestApi;
 
   void SetMouseCursorSourceWindow(ServerWindow* window);
 
   void ProcessKeyEvent(const ui::KeyEvent& event,
                        AcceleratorMatchPhase match_phase);
 
   bool IsTrackingPointer(int32_t pointer_id) const {
     return pointer_targets_.count(pointer_id) > 0;
@@ skipping 110 matching lines @@
       AcceleratorMatchPhase::ANY;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(EventDispatcher);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_EVENT_DISPATCHER_H_