Move shared files in net/quic/ into net/quic/core/

net/quic/core/quic_multipath_sent_packet_manager.cc

Index: net/quic/core/quic_multipath_sent_packet_manager.cc
diff --git a/net/quic/quic_multipath_sent_packet_manager.cc b/net/quic/core/quic_multipath_sent_packet_manager.cc
similarity index 99%
rename from net/quic/quic_multipath_sent_packet_manager.cc
rename to net/quic/core/quic_multipath_sent_packet_manager.cc
index 10609344689bca5c75c9cfd8a990e3d4251fd087..a11d959e8f6925753aa9b9245a059ceed3b6865f 100644
--- a/net/quic/quic_multipath_sent_packet_manager.cc
+++ b/net/quic/core/quic_multipath_sent_packet_manager.cc
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "net/quic/quic_multipath_sent_packet_manager.h"
+#include "net/quic/core/quic_multipath_sent_packet_manager.h"
 
 #include <cstdint>
 
 #include "base/strings/string_number_conversions.h"
-#include "net/quic/quic_bug_tracker.h"
+#include "net/quic/core/quic_bug_tracker.h"
 
 using std::string;
 using std::max;