Add packet logger and server

webrtc/tools/network_tester/test_controller.cc

Index: webrtc/tools/network_tester/test_controller.cc
diff --git a/webrtc/tools/network_tester/test_controller.cc b/webrtc/tools/network_tester/test_controller.cc
index 36cbe61ea51c11a96ee4b39d57c27c653e43ab06..11ba1d9e93919489fbcfcf55ea51f5a69d6597ff 100644
--- a/webrtc/tools/network_tester/test_controller.cc
+++ b/webrtc/tools/network_tester/test_controller.cc
@@ -14,8 +14,10 @@ namespace webrtc {
 
 TestController::TestController(int min_port,
                                int max_port,
-                               const std::string& config_file_path)
+                               const std::string& config_file_path,
+                               const std::string& log_file_path)
     : config_file_path_(config_file_path),
+      packet_logger_(log_file_path),
       local_test_done_(false),
       remote_test_done_(false) {
   auto socket =
@@ -68,7 +70,7 @@ void TestController::OnReadPacket(rtc::AsyncPacketSocket* socket,
     case NetworkTesterPacket::TEST_DATA: {
       packet.set_arrival_timestamp(packet_time.timestamp);
       packet.set_packet_size(len);
-      // log packet
+      packet_logger_.LogPacket(packet);
       break;
     }
     case NetworkTesterPacket::TEST_DONE: {