Convert ui::Event directly to blink::WebInputEvent.

content/renderer/mus/compositor_mus_connection.cc

Index: content/renderer/mus/compositor_mus_connection.cc
diff --git a/content/renderer/mus/compositor_mus_connection.cc b/content/renderer/mus/compositor_mus_connection.cc
index 8569d1836e93f3d1c99584d5a582e9b3fdc8103b..625138e9a1e8d0f1d8e1e876f4d417aa1f549181 100644
--- a/content/renderer/mus/compositor_mus_connection.cc
+++ b/content/renderer/mus/compositor_mus_connection.cc
@@ -125,10 +125,9 @@ void CompositorMusConnection::OnWindowInputEvent(
     const ui::Event& event,
     std::unique_ptr<base::Callback<void(EventResult)>>* ack_callback) {
   DCHECK(compositor_task_runner_->BelongsToCurrentThread());
-  // TODO(moshayedi): Convert ui::Event directly to blink::WebInputEvent.
   std::unique_ptr<blink::WebInputEvent> web_event(
-      mus::mojom::Event::From(event)
-          .To<std::unique_ptr<blink::WebInputEvent>>());
+      mojo::TypeConverter<std::unique_ptr<blink::WebInputEvent>,
+                          ui::Event>::Convert(event));
   // TODO(sad): We probably need to plumb LatencyInfo through Mus.
   ui::LatencyInfo info;
   InputEventAckState ack_state = input_handler_manager_->HandleInputEvent(