😴 Skip some KeepAlive registrations on shutdown.

extensions/browser/api/guest_view/web_view/web_view_internal_api.cc

Index: extensions/browser/api/guest_view/web_view/web_view_internal_api.cc
diff --git a/extensions/browser/api/guest_view/web_view/web_view_internal_api.cc b/extensions/browser/api/guest_view/web_view/web_view_internal_api.cc
index fa9642c5e8748740c652030de097bcc4d7c053c0..3b5507924683c1683bb1d7957c695d4857c4d6fc 100644
--- a/extensions/browser/api/guest_view/web_view/web_view_internal_api.cc
+++ b/extensions/browser/api/guest_view/web_view/web_view_internal_api.cc
@@ -260,6 +260,9 @@ bool LegacyWebViewInternalExtensionFunction::RunAsync() {
 }
 
 bool WebViewInternalExtensionFunction::PreRunValidation(std::string* error) {
+  if (!UIThreadExtensionFunction::PreRunValidation(error))
+    return false;
+
   int instance_id = 0;
   EXTENSION_FUNCTION_PRERUN_VALIDATE(args_->GetInteger(0, &instance_id));
   guest_ = WebViewGuest::From(render_frame_host()->GetProcess()->GetID(),