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

net/http/http_network_session.h

Index: net/http/http_network_session.h
diff --git a/net/http/http_network_session.h b/net/http/http_network_session.h
index 30cec77f04d48d0ec4aad019a6abd4dece195f9b..31d00f0110c241a0acdc25b90f17bb7ac6052da1 100644
--- a/net/http/http_network_session.h
+++ b/net/http/http_network_session.h
@@ -17,6 +17,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "net/base/host_port_pair.h"
+#include "net/base/net_error_details.h"
 #include "net/base/net_export.h"
 #include "net/dns/host_resolver.h"
 #include "net/http/http_auth_cache.h"
@@ -268,6 +269,8 @@ class NET_EXPORT HttpNetworkSession
   // Populates |*npn_protos| with protocols to be used with NPN.
   void GetNpnProtos(NextProtoVector* npn_protos) const;
 
+  void PopulateNetErrorDetails(NetErrorDetails* details);
+
  private:
   friend class HttpNetworkSessionPeer;