Collect all ConnectionAttempts from both sockets in TransportConnectJob.

net/socket/socks5_client_socket.cc

Index: net/socket/socks5_client_socket.cc
diff --git a/net/socket/socks5_client_socket.cc b/net/socket/socks5_client_socket.cc
index e43cde62336f1965fdda4171a52867b50ebc5bcd..4ac9ca59656a47a9209c5e15af16bea3745b6557 100644
--- a/net/socket/socks5_client_socket.cc
+++ b/net/socket/socks5_client_socket.cc
@@ -144,7 +144,10 @@ bool SOCKS5ClientSocket::GetSSLInfo(SSLInfo* ssl_info) {
   }
   NOTREACHED();
   return false;
+}
 
+void SOCKS5ClientSocket::GetConnectionAttempts(ConnectionAttempts* out) const {
+  out->clear();
 }
 
 // Read is called by the transport layer above to read. This can only be done