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

net/quic/core/quic_sent_entropy_manager.cc

Index: net/quic/core/quic_sent_entropy_manager.cc
diff --git a/net/quic/quic_sent_entropy_manager.cc b/net/quic/core/quic_sent_entropy_manager.cc
similarity index 97%
rename from net/quic/quic_sent_entropy_manager.cc
rename to net/quic/core/quic_sent_entropy_manager.cc
index ca387b944563f5a3f360b00cdc7d305489ff4250..9446ad16f127aecc2035c1171003605a6e172100 100644
--- a/net/quic/quic_sent_entropy_manager.cc
+++ b/net/quic/core/quic_sent_entropy_manager.cc
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "net/quic/quic_sent_entropy_manager.h"
+#include "net/quic/core/quic_sent_entropy_manager.h"
 
 #include "base/logging.h"
 #include "net/base/linked_hash_map.h"
-#include "net/quic/quic_flags.h"
+#include "net/quic/core/quic_flags.h"
 
 using std::make_pair;
 using std::max;