Turning off CID truncation for proxied connections.

net/quic/quic_config.cc

Index: net/quic/quic_config.cc
diff --git a/net/quic/quic_config.cc b/net/quic/quic_config.cc
index d5f68b8aff55eed12c4347b32204d15acc297c0d..b1b73430603d5ebc27ac627d585e034bdfe9f895 100644
--- a/net/quic/quic_config.cc
+++ b/net/quic/quic_config.cc
@@ -508,6 +508,10 @@ uint32 QuicConfig::MaxStreamsPerConnection() const {
   return max_streams_per_connection_.GetUint32();
 }
 
+bool QuicConfig::HasSetBytesForConnectionIdToSend() const {
+  return bytes_for_connection_id_.HasSendValue();
+}
+
 void QuicConfig::SetBytesForConnectionIdToSend(uint32 bytes) {
   bytes_for_connection_id_.SetSendValue(bytes);
 }