Move QuicAckListenerInterface, QuicPendingRetransmission, and QuicTransmissionInfo out of quic_pack…

net/quic/core/quic_multipath_sent_packet_manager.cc

Index: net/quic/core/quic_multipath_sent_packet_manager.cc
diff --git a/net/quic/core/quic_multipath_sent_packet_manager.cc b/net/quic/core/quic_multipath_sent_packet_manager.cc
index 5d46ec10f0606bdaf2eeade0975eaa6153ca57ee..12ce5dfc45c11b1ac1e47e921956e1fa545cdac8 100644
--- a/net/quic/core/quic_multipath_sent_packet_manager.cc
+++ b/net/quic/core/quic_multipath_sent_packet_manager.cc
@@ -129,7 +129,7 @@ bool QuicMultipathSentPacketManager::HasPendingRetransmissions() const {
   return path_manager != nullptr && path_manager->HasPendingRetransmissions();
 }
 
-PendingRetransmission
+QuicPendingRetransmission
 QuicMultipathSentPacketManager::NextPendingRetransmission() {
   // TODO(fayang): Move pending_retransmissions_ from path sent packet manager
   // to multipath sent packet manager.
@@ -138,9 +138,9 @@ QuicMultipathSentPacketManager::NextPendingRetransmission() {
   if (path_manager == nullptr) {
     OnUnrecoverablePathError(kDefaultPathId);
     QuicFrames retransmittable_frames;
-    return PendingRetransmission(kInvalidPathId, 0u, NOT_RETRANSMISSION,
-                                 retransmittable_frames, false, 0,
-                                 ENCRYPTION_NONE, PACKET_1BYTE_PACKET_NUMBER);
+    return QuicPendingRetransmission(
+        kInvalidPathId, 0u, NOT_RETRANSMISSION, retransmittable_frames, false,
+        0, ENCRYPTION_NONE, PACKET_1BYTE_PACKET_NUMBER);
   }
   return path_manager->NextPendingRetransmission();
 }