Temporarily store the raw QUIC packet in QuicConnection.

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 643 matching lines @@
   uint32_t cipher_id() const { return framer_.decrypter()->cipher_id(); }
 
   std::vector<QuicEncryptedPacket*>* termination_packets() {
     return termination_packets_.get();
   }
 
   bool ack_frame_updated() const;
 
   QuicConnectionHelperInterface* helper() { return helper_; }
 
+  base::StringPiece GetCurrentPacket();
+
  protected:
   // Send a packet to the peer, and takes ownership of the packet if the packet
   // cannot be written immediately.
   virtual void SendOrQueuePacket(SerializedPacket* packet);
 
   // Migrate the connection if peer address changes. This function should only
   // be called after the packet is validated.
   virtual void MaybeMigrateConnectionToNewPeerAddress();
 
   // Selects and updates the version of the protocol being used by selecting a
@@ skipping 165 matching lines @@
 
   // Used to store latest peer IP address for IP address migration.
   IPAddress migrating_peer_ip_;
   // Used to store latest peer port to possibly migrate to later.
   uint16_t migrating_peer_port_;
 
   // True if the last packet has gotten far enough in the framer to be
   // decrypted.
   bool last_packet_decrypted_;
   QuicByteCount last_size_;   // Size of the last received packet.
+  // TODO(rch): remove this when b/27221014 is fixed.
+  const char* current_packet_data_;  // UDP payload of packet currently being
+                                     // parsed or nullptr.
   EncryptionLevel last_decrypted_packet_level_;
   QuicPacketHeader last_header_;
   QuicStopWaitingFrame last_stop_waiting_frame_;
   bool should_last_packet_instigate_acks_;
 
   // Track some peer state so we can do less bookkeeping
   // Largest sequence sent by the peer which had an ack frame (latest ack info).
   QuicPacketNumber largest_seen_packet_with_ack_;
 
   // Largest packet number sent by the peer which had a stop waiting frame.
@@ skipping 174 matching lines @@
 
   // If true, multipath is enabled for this connection.
   bool multipath_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnection);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_H_