Move rtp dump writer from quality test to test transport

webrtc/test/layer_filtering_transport.h

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #ifndef WEBRTC_TEST_LAYER_FILTERING_TRANSPORT_H_
 #define WEBRTC_TEST_LAYER_FILTERING_TRANSPORT_H_
 
+#include <map>
+#include <memory>
+
 #include "webrtc/call/call.h"
 #include "webrtc/test/direct_transport.h"
 #include "webrtc/test/fake_network_pipe.h"
+#include "webrtc/test/rtp_file_writer.h"
 #include "webrtc/test/single_threaded_task_queue.h"
 
-#include <map>
-
 namespace webrtc {
 
 namespace test {
 
 class LayerFilteringTransport : public test::DirectTransport {
  public:
   LayerFilteringTransport(SingleThreadedTaskQueueForTesting* task_queue,
                           const FakeNetworkPipe::Config& config,
                           Call* send_call,
                           uint8_t vp8_video_payload_type,
                           uint8_t vp9_video_payload_type,
                           int selected_tl,
                           int selected_sl,
-                          const std::map<uint8_t, MediaType>& payload_type_map);
+                          const std::map<uint8_t, MediaType>& payload_type_map,
+                          std::unique_ptr<test::RtpFileWriter> rtp_file_writer);
   bool DiscardedLastPacket() const;
   bool SendRtp(const uint8_t* data,
                size_t length,
                const PacketOptions& options) override;
 
  private:
   // Used to distinguish between VP8 and VP9.
   const uint8_t vp8_video_payload_type_;
   const uint8_t vp9_video_payload_type_;
   // Discard or invalidate all temporal/spatial layers with id greater than the
   // selected one. -1 to disable filtering.
   const int selected_tl_;
   const int selected_sl_;
   bool discarded_last_packet_;
+
+  const int64_t start_ms_;
+  std::unique_ptr<test::RtpFileWriter> rtp_file_writer_;
 };
 
 }  // namespace test
 }  // namespace webrtc
 
 #endif  // WEBRTC_TEST_LAYER_FILTERING_TRANSPORT_H_