Pass chrome version and channel in CHLO message to server.

net/quic/crypto/quic_crypto_client_config.cc

Index: net/quic/crypto/quic_crypto_client_config.cc
diff --git a/net/quic/crypto/quic_crypto_client_config.cc b/net/quic/crypto/quic_crypto_client_config.cc
index f9b31fd57b5e73e0203ce1ef4512b4d6fd1618b0..f19a5b459c3eb4d6f93d5ca4584bc802c9f52153 100644
--- a/net/quic/crypto/quic_crypto_client_config.cc
+++ b/net/quic/crypto/quic_crypto_client_config.cc
@@ -305,6 +305,10 @@ void QuicCryptoClientConfig::FillInchoateClientHello(
   }
   out->SetValue(kVER, QuicVersionToQuicTag(preferred_version));
 
+  if (!user_agent_id_.empty()) {
+    out->SetStringPiece(kUAID, user_agent_id_);
+  }
+
   if (!cached->source_address_token().empty()) {
     out->SetStringPiece(kSourceAddressTokenTag, cached->source_address_token());
   }