[MediaSession] Don't reset metadata and actions when the session goes uncontrollable

content/browser/media/session/media_session_impl.cc

Index: content/browser/media/session/media_session_impl.cc
diff --git a/content/browser/media/session/media_session_impl.cc b/content/browser/media/session/media_session_impl.cc
index 136c0ed0e53fcdfd3b319f5b7e44adc8c4414c4f..bedae34f22e869fb82ab0414fc1935706116fd5b 100644
--- a/content/browser/media/session/media_session_impl.cc
+++ b/content/browser/media/session/media_session_impl.cc
@@ -630,10 +630,6 @@ void MediaSessionImpl::UpdateRoutedService() {
   if (routed_service_) {
     NotifyMediaSessionMetadataChange(routed_service_->metadata());
     NotifyMediaSessionActionsChange(routed_service_->actions());
-  } else {
-    NotifyMediaSessionMetadataChange(base::nullopt);
-    NotifyMediaSessionActionsChange(
-        std::set<blink::mojom::MediaSessionAction>());
   }
 }