Let QUIC be able to add random padding of [1,256] bytes after fin is consumed for a stream. Random …

net/quic/core/quic_types.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_CORE_QUIC_TYPES_H_
 #define NET_QUIC_CORE_QUIC_TYPES_H_
 
 #include <array>
 #include <cstddef>
 #include <map>
@@ skipping 243 matching lines @@
   // IPv4 address changed, excluding /24 subnet change (port may have changed.)
   IPV4_TO_IPV4_CHANGE,
   // IP address change from an IPv4 to an IPv6 address (port may have changed.)
   IPV4_TO_IPV6_CHANGE,
   // IP address change from an IPv6 to an IPv4 address (port may have changed.)
   IPV6_TO_IPV4_CHANGE,
   // IP address change from an IPv6 to an IPv6 address (port may have changed.)
   IPV6_TO_IPV6_CHANGE,
 };
 
+enum StreamSendingState {
+  // Sender has more data to send on this stream.
+  NO_FIN,
+  // Sender is done sending on this stream.
+  FIN,
+  // Sender is done sending on this stream and random padding needs to be
+  // appended after all stream frames.
+  FIN_AND_PADDING,
+};
+
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_QUIC_TYPES_H_