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

ui/events/test/event_generator.cc

Index: ui/events/test/event_generator.cc
diff --git a/ui/events/test/event_generator.cc b/ui/events/test/event_generator.cc
index d52348e6e03a2b57521f7e0ab5436608af12e5bf..212afc73281d4e239a6a1354cb381448129a6931 100644
--- a/ui/events/test/event_generator.cc
+++ b/ui/events/test/event_generator.cc
@@ -716,7 +716,7 @@ void EventGenerator::DoDispatchEvent(ui::Event* event, bool async) {
           delegate()->GetEventSource(current_target_);
       ui::EventSourceTestApi event_source_test(event_source);
       ui::EventDispatchDetails details =
-          event_source_test.SendEventToProcessor(event);
+          event_source_test.SendEventToSink(event);
       CHECK(!details.dispatcher_destroyed);
     }
   }