Fix non-Latin key event handling for menu mnemonics

ui/views/controls/menu/menu_key_event_handler.cc

Index: ui/views/controls/menu/menu_key_event_handler.cc
diff --git a/ui/views/controls/menu/menu_key_event_handler.cc b/ui/views/controls/menu/menu_key_event_handler.cc
index c751c4c4f7d75899d58823a7f3f65ab4c7c345c1..af0566e2af93833c5704f9d2a18d8d0d64df33ba 100644
--- a/ui/views/controls/menu/menu_key_event_handler.cc
+++ b/ui/views/controls/menu/menu_key_event_handler.cc
@@ -57,7 +57,7 @@ void MenuKeyEventHandler::OnKeyEvent(ui::KeyEvent* event) {
     const int flags = event->flags();
     if (menu_controller->exit_type() == MenuController::EXIT_NONE &&
         (flags & kKeyFlagsMask) == 0) {
-      char c = event->GetCharacter();
+      base::char16 c = event->GetCharacter();
       menu_controller->SelectByChar(c);
       // Menu controller might have been deleted.
       if (!MenuController::GetActiveInstance())