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

services/ui/ws/window_tree_unittest.cc

 // 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.
 
 #include "services/ui/ws/window_tree.h"
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
@@ skipping 129 matching lines @@
     return window_event_targeting_helper_.wm_client();
   }
   WindowServer* window_server() {
     return window_event_targeting_helper_.window_server();
   }
   WindowTree* wm_tree() {
     return window_event_targeting_helper_.window_server()->GetTreeWithId(1);
   }
 
   void DispatchEventWithoutAck(const ui::Event& event) {
-    DisplayTestApi(display()).OnEvent(event);
+    std::unique_ptr<Event> tmp = ui::Event::Clone(event);
+    DisplayTestApi(display()).OnEvent(tmp.get());
   }
 
   void set_window_manager_internal(WindowTree* tree,
                                    mojom::WindowManager* wm_internal) {
     WindowTreeTestApi(tree).set_window_manager_internal(wm_internal);
   }
 
   void AckPreviousEvent() {
     WindowManagerStateTestApi test_api(
         display()->GetActiveWindowManagerDisplayRoot()->window_manager_state());
@@ skipping 1300 matching lines @@
     client->tracker()->changes()->clear();
   }
 
   // Client should not have got any messages after shutdown.
   EXPECT_TRUE(client->tracker()->changes()->empty());
 }
 
 }  // namespace test
 }  // namespace ws
 }  // namespace ui