Make packet_dropping_test_writer not depend on epoll-related code.

PiperOrigin-RevId: 446587829
diff --git a/quiche/quic/test_tools/packet_dropping_test_writer.cc b/quiche/quic/test_tools/packet_dropping_test_writer.cc
index 03b6500..69aae14 100644
--- a/quiche/quic/test_tools/packet_dropping_test_writer.cc
+++ b/quiche/quic/test_tools/packet_dropping_test_writer.cc
@@ -4,7 +4,6 @@
 
 #include "quiche/quic/test_tools/packet_dropping_test_writer.h"
 
-#include "quiche/quic/core/quic_epoll_connection_helper.h"
 #include "quiche/quic/platform/api/quic_logging.h"
 
 namespace quic {
diff --git a/quiche/quic/test_tools/packet_dropping_test_writer.h b/quiche/quic/test_tools/packet_dropping_test_writer.h
index 0cc684e..a7e91d3 100644
--- a/quiche/quic/test_tools/packet_dropping_test_writer.h
+++ b/quiche/quic/test_tools/packet_dropping_test_writer.h
@@ -11,9 +11,11 @@
 
 #include "absl/base/attributes.h"
 #include "quiche/quic/core/quic_alarm.h"
+#include "quiche/quic/core/quic_alarm_factory.h"
 #include "quiche/quic/core/quic_clock.h"
+#include "quiche/quic/core/quic_connection.h"
 #include "quiche/quic/core/quic_packet_writer_wrapper.h"
-#include "quiche/quic/test_tools/quic_test_client.h"
+#include "quiche/quic/platform/api/quic_mutex.h"
 #include "quiche/quic/test_tools/quic_test_utils.h"
 
 namespace quic {