QUIC - Crash when there is a bad packet loss and the session is closed.

net/quic/quic_client_session.h

Index: net/quic/quic_client_session.h
diff --git a/net/quic/quic_client_session.h b/net/quic/quic_client_session.h
index d465d657e87bb39be5d8c08b9e0a56fbd8d7bf6f..6b7dab68fdbf6e9f2d70fa44df6c1ad394a12b26 100644
--- a/net/quic/quic_client_session.h
+++ b/net/quic/quic_client_session.h
@@ -173,6 +173,11 @@ class NET_EXPORT_PRIVATE QuicClientSession : public QuicClientSessionBase,
   // that this session has been closed, which will delete the session.
   void CloseSessionOnError(int error, QuicErrorCode quic_error);
 
+  // Close the session because of |error| and notifies the factory later that
+  // this session has been closed, which will delete the session.
+  void CloseSessionOnErrorAndNotifyFactoryLater(int error,
+                                                QuicErrorCode quic_error);
+
   base::Value* GetInfoAsValue(const std::set<HostPortPair>& aliases);
 
   const BoundNetLog& net_log() const { return net_log_; }
@@ -207,6 +212,9 @@ class NET_EXPORT_PRIVATE QuicClientSession : public QuicClientSessionBase,
 
   void OnClosedStream();
 
+  // Close the session because of |error| and records it in UMA histogram.
+  void RecordAndCloseSessionOnError(int error, QuicErrorCode quic_error);
+
   // A Session may be closed via any of three methods:
   // OnConnectionClosed - called by the connection when the connection has been
   //     closed, perhaps due to a timeout or a protocol error.