Move quic_flags.h from net/quic/core to net/quic/platform and split into api and impl.

net/quic/core/congestion_control/send_algorithm_interface.cc

 // 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.
 
 #include "net/quic/core/congestion_control/send_algorithm_interface.h"
 
 #include "net/quic/core/congestion_control/bbr_sender.h"
 #include "net/quic/core/congestion_control/tcp_cubic_sender_bytes.h"
 #include "net/quic/core/congestion_control/tcp_cubic_sender_packets.h"
-#include "net/quic/core/quic_flags.h"
 #include "net/quic/core/quic_packets.h"
 #include "net/quic/platform/api/quic_bug_tracker.h"
+#include "net/quic/platform/api/quic_flags.h"
 
 namespace net {
 
 class RttStats;
 
 // Factory for send side congestion control algorithm.
 SendAlgorithmInterface* SendAlgorithmInterface::Create(
     const QuicClock* clock,
     const RttStats* rtt_stats,
     const QuicUnackedPacketMap* unacked_packets,
@@ skipping 25 matching lines @@
                                        max_congestion_window, stats);
     case kRenoBytes:
       return new TcpCubicSenderBytes(clock, rtt_stats, true /* use Reno */,
                                      initial_congestion_window,
                                      max_congestion_window, stats);
   }
   return nullptr;
 }
 
 }  // namespace net