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

ui/aura/mus/window_tree_host_mus.h

Index: ui/aura/mus/window_tree_host_mus.h
diff --git a/ui/aura/mus/window_tree_host_mus.h b/ui/aura/mus/window_tree_host_mus.h
index 047ffde84496b5e7149f1608681b72f483b8e36e..9f24342af1504f3f49e50d0d6e4e7377b02beee2 100644
--- a/ui/aura/mus/window_tree_host_mus.h
+++ b/ui/aura/mus/window_tree_host_mus.h
@@ -59,8 +59,8 @@ class AURA_EXPORT WindowTreeHostMus : public aura::WindowTreeHostPlatform {
   // Sets the bounds in pixels.
   void SetBoundsFromServer(const gfx::Rect& bounds_in_pixels);
 
-  ui::EventDispatchDetails SendEventToProcessor(ui::Event* event) {
-    return aura::WindowTreeHostPlatform::SendEventToProcessor(event);
+  ui::EventDispatchDetails SendEventToSink(ui::Event* event) {
+    return aura::WindowTreeHostPlatform::SendEventToSink(event);
   }
 
   InputMethodMus* input_method() { return input_method_.get(); }