Collect all ConnectionAttempts from both sockets in TransportConnectJob.

jingle/glue/proxy_resolving_client_socket.cc

Index: jingle/glue/proxy_resolving_client_socket.cc
diff --git a/jingle/glue/proxy_resolving_client_socket.cc b/jingle/glue/proxy_resolving_client_socket.cc
index 5a6e068e13004bedc480b9a36a51bffcb95bc2f1..9eb2da36be21b0798e1d8f16e656045aa094b664 100644
--- a/jingle/glue/proxy_resolving_client_socket.cc
+++ b/jingle/glue/proxy_resolving_client_socket.cc
@@ -420,6 +420,11 @@ bool ProxyResolvingClientSocket::GetSSLInfo(net::SSLInfo* ssl_info) {
   return false;
 }
 
+void ProxyResolvingClientSocket::GetConnectionAttempts(
+    net::ConnectionAttempts* out) const {
+  out->clear();
+}
+
 void ProxyResolvingClientSocket::CloseTransportSocket() {
   if (transport_.get() && transport_->socket())
     transport_->socket()->Disconnect();