Adds an internal server and chromium's flag for disabling/enabling FEC

net/quic/quic_server_session.h

Index: net/quic/quic_server_session.h
diff --git a/net/quic/quic_server_session.h b/net/quic/quic_server_session.h
index 30ac08c80df802cfe3dea105300121f5e6cfeb3c..a774ea94f8f2e3778ecc3977f20b11d69206add4 100644
--- a/net/quic/quic_server_session.h
+++ b/net/quic/quic_server_session.h
@@ -59,6 +59,9 @@ class QuicServerSession : public QuicSession {
     return crypto_stream_.get();
   }
 
+  // Override base class to process FEC config received from client.
+  virtual void OnConfigNegotiated() OVERRIDE;
+
  protected:
   // QuicSession methods:
   virtual QuicDataStream* CreateIncomingDataStream(QuicStreamId id) OVERRIDE;