Remove ui::KeyEvent::platform_keycode_

ui/events/ozone/layout/keyboard_layout_engine.h

Index: ui/events/ozone/layout/keyboard_layout_engine.h
diff --git a/ui/events/ozone/layout/keyboard_layout_engine.h b/ui/events/ozone/layout/keyboard_layout_engine.h
index 1e15dfab51eb925a0c1857a53d7e232b3407a247..20cf1d88f1ea69dfe1bd39f579ec076b8b60a316 100644
--- a/ui/events/ozone/layout/keyboard_layout_engine.h
+++ b/ui/events/ozone/layout/keyboard_layout_engine.h
@@ -61,13 +61,10 @@ class EVENTS_OZONE_LAYOUT_EXPORT KeyboardLayoutEngine {
   // Returns false if it cannot determine the meaning (and cannot determine
   // that there is none); in this case it does not set any of the output
   // parameters.
-  //
-  // TODO(kpschoedel): remove the platform_keycode output. crbug.com/442757
   virtual bool Lookup(DomCode dom_code,
                       int event_flags,
                       DomKey* dom_key,
-                      KeyboardCode* key_code,
-                      uint32* platform_keycode) const = 0;
+                      KeyboardCode* key_code) const = 0;
 };
 
 }  // namespace ui