Add path_id to SerializedPacket. No functional change.

net/quic/quic_connection_test.cc

 // 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.
 
 #include "net/quic/quic_connection.h"
 
 #include <ostream>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 443 matching lines @@
     RetransmittableFrames* retransmittable_frames =
         retransmittable == HAS_RETRANSMITTABLE_DATA
             ? new RetransmittableFrames()
             : nullptr;
     char buffer[kMaxPacketSize];
     size_t encrypted_length =
         QuicConnectionPeer::GetFramer(this)->EncryptPayload(
             ENCRYPTION_NONE, packet_number, *packet, buffer, kMaxPacketSize);
     delete packet;
     SerializedPacket serialized_packet(
-        packet_number, PACKET_6BYTE_PACKET_NUMBER, buffer, encrypted_length,
-        false, entropy_hash, retransmittable_frames, has_ack,
+        kDefaultPathId, packet_number, PACKET_6BYTE_PACKET_NUMBER, buffer,
+        encrypted_length, false, entropy_hash, retransmittable_frames, has_ack,
         has_pending_frames, ENCRYPTION_NONE);
     OnSerializedPacket(&serialized_packet);
   }
 
   QuicConsumedData SendStreamDataWithString(
       QuicStreamId id,
       StringPiece data,
       QuicStreamOffset offset,
       bool fin,
       QuicAckListenerInterface* listener) {
@@ skipping 5027 matching lines @@
   EXPECT_CALL(visitor_,
               OnConnectionClosed(QUIC_UNENCRYPTED_STREAM_DATA, false));
   EXPECT_DFATAL(connection_.SendStreamDataWithString(3, "", 0, kFin, nullptr),
                 "Cannot send stream data without encryption.");
   EXPECT_FALSE(connection_.connected());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net