Add path_id to QuicSentPacketManager and QuicSentPacketManager::PendingRetransmission. No functiona…

net/quic/quic_sent_packet_manager.h

Index: net/quic/quic_sent_packet_manager.h
diff --git a/net/quic/quic_sent_packet_manager.h b/net/quic/quic_sent_packet_manager.h
index f0d990f702d7a4bb041f322825763cb933c5c606..b9580f7afa2d8f04da72d032ef8eccb8854ac214 100644
--- a/net/quic/quic_sent_packet_manager.h
+++ b/net/quic/quic_sent_packet_manager.h
@@ -74,17 +74,20 @@ class NET_EXPORT_PRIVATE QuicSentPacketManager {
 
   // Struct to store the pending retransmission information.
   struct PendingRetransmission {
-    PendingRetransmission(QuicPacketNumber packet_number,
+    PendingRetransmission(QuicPathId path_id,
+                          QuicPacketNumber packet_number,
                           TransmissionType transmission_type,
                           const RetransmittableFrames& retransmittable_frames,
                           EncryptionLevel encryption_level,
                           QuicPacketNumberLength packet_number_length)
-        : packet_number(packet_number),
+        : path_id(path_id),
+          packet_number(packet_number),
           transmission_type(transmission_type),
           retransmittable_frames(retransmittable_frames),
           encryption_level(encryption_level),
           packet_number_length(packet_number_length) {}
 
+    QuicPathId path_id;
     QuicPacketNumber packet_number;
     TransmissionType transmission_type;
     const RetransmittableFrames& retransmittable_frames;
@@ -93,6 +96,7 @@ class NET_EXPORT_PRIVATE QuicSentPacketManager {
   };
 
   QuicSentPacketManager(Perspective perspective,
+                        QuicPathId path_id,
                         const QuicClock* clock,
                         QuicConnectionStats* stats,
                         CongestionControlType congestion_control_type,
@@ -358,6 +362,8 @@ class NET_EXPORT_PRIVATE QuicSentPacketManager {
   // Tracks if the connection was created by the server or the client.
   Perspective perspective_;
 
+  QuicPathId path_id_;
+
   const QuicClock* clock_;
   QuicConnectionStats* stats_;
   DebugDelegate* debug_delegate_;