RefCounted types should not have public destructors, net/ edition

net/base/stream_listen_socket.h

Index: net/base/stream_listen_socket.h
diff --git a/net/base/stream_listen_socket.h b/net/base/stream_listen_socket.h
index 146e1d1fff1be2f591691815fb159d1f0f6926ce..95c32600f4fbe74820bd2ac524b2e50d396b9cbc 100644
--- a/net/base/stream_listen_socket.h
+++ b/net/base/stream_listen_socket.h
@@ -60,8 +60,6 @@ class NET_EXPORT StreamListenSocket
   // should be split up similarly.
   class Delegate {
    public:
-    virtual ~Delegate() {}
-
     // |server| is the original listening Socket, connection is the new
     // Socket that was created.  Ownership of |connection| is transferred
     // to the delegate with this call.
@@ -71,6 +69,9 @@ class NET_EXPORT StreamListenSocket
                          const char* data,
                          int len) = 0;
     virtual void DidClose(StreamListenSocket* sock) = 0;
+
+   protected:
+    virtual ~Delegate() {}
   };
 
   // Send data to the socket.