Collect all ConnectionAttempts from both sockets in TransportConnectJob.

net/socket/socks_client_socket.cc

Index: net/socket/socks_client_socket.cc
diff --git a/net/socket/socks_client_socket.cc b/net/socket/socks_client_socket.cc
index fd16f832915a5870d12aea02b82a7b36e762c0ea..dbdc0251768fcd64eb29711bfcd2fbaf57046b2d 100644
--- a/net/socket/socks_client_socket.cc
+++ b/net/socket/socks_client_socket.cc
@@ -172,7 +172,10 @@ bool SOCKSClientSocket::GetSSLInfo(SSLInfo* ssl_info) {
   }
   NOTREACHED();
   return false;
+}
 
+void SOCKSClientSocket::GetConnectionAttempts(ConnectionAttempts* out) const {
+  out->clear();
 }
 
 // Read is called by the transport layer above to read. This can only be done