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

net/quic/test_tools/quic_multipath_sent_packet_manager_peer.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.
 
 #ifndef NET_QUIC_TEST_TOOLS_QUIC_MULTIPATH_SENT_PACKET_MANAGER_PEER_H_
 #define NET_QUIC_TEST_TOOLS_QUIC_MULTIPATH_SENT_PACKET_MANAGER_PEER_H_
 
 #include "base/macros.h"
-#include "net/quic/quic_multipath_sent_packet_manager.h"
+#include "net/quic/core/quic_multipath_sent_packet_manager.h"
 #include "net/quic/test_tools/quic_sent_packet_manager_peer.h"
 
 namespace net {
 namespace test {
 
 class QuicMultipathSentPacketManagerPeer {
  public:
   // Add a path |manager| with close state.
   static void AddPathWithCloseState(
       QuicMultipathSentPacketManager* multipath_manager,
       QuicSentPacketManagerInterface* manager);
 
   // Add a path |manager| with active state.
   static void AddPathWithActiveState(
       QuicMultipathSentPacketManager* multipath_manager,
       QuicSentPacketManagerInterface* manager);
 };
 
 }  // namespace test
 }  // namespace net
 
 #endif  // NET_QUIC_TEST_TOOLS_QUIC_MULTIPATH_SENT_PACKET_MANAGER_PEER_H_