Skip mount stat logging if mounted content names are empty

Summary:
Stats aren't super helpful without names, so let's exclude
all events without for now.

Reviewed By: marco-cova

Differential Revision: D10085437

fbshipit-source-id: a071ab6b5d02340656506ed790bfe7ebcde84c42

litho-core/src/main/java/com/facebook/litho/MountState.java

@@ -394,7 +394,7 @@ private void logMountPerfEvent(ComponentsLogger logger, @Nullable PerfEvent moun
 
     // MOUNT events that don't mount any content are not valuable enough to log at the moment.
     // We will likely enable them again in the future. T31729233
-    if (mMountStats.mountedCount == 0) {
+    if (mMountStats.mountedCount == 0 || mMountStats.mountedNames.isEmpty()) {
       logger.cancelPerfEvent(mountPerfEvent);
       return;
     }