[Domain Reliabiliy: net stack] Plumb received go away from server due to connection migration.

net/quic/quic_http_stream.h

Index: net/quic/quic_http_stream.h
diff --git a/net/quic/quic_http_stream.h b/net/quic/quic_http_stream.h
index 81aacb024a259a18b3365fedfec11a688b250712..a88a6e1f3ed1b8c93f7e56b0affdf52fa7d5584b 100644
--- a/net/quic/quic_http_stream.h
+++ b/net/quic/quic_http_stream.h
@@ -79,7 +79,7 @@ class NET_EXPORT_PRIVATE QuicHttpStream
 
   // QuicChromiumClientSession::Observer implementation
   void OnCryptoHandshakeConfirmed() override;
-  void OnSessionClosed(int error) override;
+  void OnSessionClosed(int error, bool port_migration_detected) override;
 
   // QuicClientPushPromiseIndex::Delegate implementation
   bool CheckVary(const SpdyHeaderBlock& client_request,
@@ -193,6 +193,9 @@ class NET_EXPORT_PRIVATE QuicHttpStream
   // SSLInfo from the underlying QuicSession.
   SSLInfo ssl_info_;
 
+  // True when this stream receives a go away from server due to port migration.
+  bool port_migration_detected_;
+
   bool found_promise_;
   // |QuicClientPromisedInfo| owns this. It will be set when |Try()|
   // is asynchronous, i.e. it returned QUIC_PENDING, and remains valid