Preparation for Chrome experiment to enable bandwidth resumption.

net/quic/quic_connection.h

 // Copyright (c) 2012 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.
 //
 // The entity that handles framing writes for a Quic client or server.
 // Each QuicSession will have a connection associated with it.
 //
 // On the server side, the Dispatcher handles the raw reads, and hands off
 // packets via ProcessUdpPacket for framing and processing.
 //
@@ skipping 240 matching lines @@
                  const PacketWriterFactory& writer_factory,
                  bool owns_writer,
                  bool is_server,
                  bool is_secure,
                  const QuicVersionVector& supported_versions);
   ~QuicConnection() override;
 
   // Sets connection parameters from the supplied |config|.
   void SetFromConfig(const QuicConfig& config);
 
+  // Called by the Session when the client has provided CachedNetworkParameters.
+  // Virtual for tests.
+  virtual void ResumeConnectionState(
+      const CachedNetworkParameters& cached_network_params);
+
   // Sets the number of active streams on the connection for congestion control.
   void SetNumOpenStreams(size_t num_streams);
 
   // Send the data in |data| to the peer in as few packets as possible.
   // Returns a pair with the number of bytes consumed from data, and a boolean
   // indicating if the fin bit was consumed.  This does not indicate the data
   // has been sent on the wire: it may have been turned into a packet and queued
   // if the socket was unexpectedly blocked. |fec_protection| indicates if
   // data is to be FEC protected. Note that data that is sent immediately
   // following MUST_FEC_PROTECT data may get protected by falling within the
@@ skipping 561 matching lines @@
 
   // True if this is a secure QUIC connection.
   bool is_secure_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnection);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_H_