mustash: Use ui::chromeos::EventRewriter in mus

services/ui/ws/display.h

Index: services/ui/ws/display.h
diff --git a/services/ui/ws/display.h b/services/ui/ws/display.h
index 679a338fab81a596d4d1ccd6e1576c685c2ea6aa..a86d795d45fff071eb8bca4bdabbd4234acc1d52 100644
--- a/services/ui/ws/display.h
+++ b/services/ui/ws/display.h
@@ -27,6 +27,7 @@
 #include "services/ui/ws/user_id_tracker_observer.h"
 #include "services/ui/ws/window_manager_window_tree_factory_set_observer.h"
 #include "ui/display/display.h"
+#include "ui/events/event_processor.h"
 
 namespace ui {
 namespace ws {
@@ -52,7 +53,8 @@ class DisplayTestApi;
 //   Display.
 // . without a DisplayBinding. In this mode a WindowManager is automatically
 //   created per user.
-class Display : public PlatformDisplayDelegate,
+class Display : public ui::EventProcessor,
+                public PlatformDisplayDelegate,
                 public mojom::WindowTreeHost,
                 public FocusControllerObserver,
                 public FocusControllerDelegate,
@@ -166,12 +168,18 @@ class Display : public PlatformDisplayDelegate,
   // pixels.
   void CreateRootWindow(const gfx::Size& size);
 
+  // ui::EventProcessor:
+  bool CanDispatchToTarget(ui::EventTarget* target) override;
+  ui::EventTarget* GetRootForEvent(ui::Event* event) override;
+  ui::EventTargeter* GetDefaultEventTargeter() override;
+  ui::EventDispatchDetails OnEventFromSource(ui::Event* event) override;
+
   // PlatformDisplayDelegate:
   display::Display GetDisplay() override;
   ServerWindow* GetRootWindow() override;
+  ui::EventProcessor* GetEventProcessor() override;
   void OnAcceleratedWidgetAvailable() override;
   bool IsInHighContrastMode() override;
-  void OnEvent(const ui::Event& event) override;
   void OnNativeCaptureLost() override;
 
   // FocusControllerDelegate: