Added SetUserAgentID method to QuicClient which calls crypto_config_'s

net/tools/quic/quic_client.h

Index: net/tools/quic/quic_client.h
diff --git a/net/tools/quic/quic_client.h b/net/tools/quic/quic_client.h
index 313ba9cd7a83e17fdc51ca6c97e203526b8f2469..13aff636ada902781c061467be435ea925d9f04f 100644
--- a/net/tools/quic/quic_client.h
+++ b/net/tools/quic/quic_client.h
@@ -146,6 +146,10 @@ class QuicClient : public EpollCallbackInterface,
     server_id_ = server_id;
   }
 
+  void SetUserAgentID(const string& user_agent_id) {
+    crypto_config_.set_user_agent_id(user_agent_id);
+  }
+
   // SetProofVerifier sets the ProofVerifier that will be used to verify the
   // server's certificate and takes ownership of |verifier|.
   void SetProofVerifier(ProofVerifier* verifier) {