Remove the QuicDispatcher's explicit use of EpollServer.

net/tools/quic/test_tools/packet_dropping_test_writer.cc

 // Copyright 2013 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/tools/quic/test_tools/packet_dropping_test_writer.h"
 
 #include <limits>
 
 #include "base/rand_util.h"
 #include "net/tools/quic/quic_epoll_connection_helper.h"
@@ skipping 43 matching lines @@
       fake_bandwidth_(QuicBandwidth::Zero()),
       buffer_size_(0) {
   uint32 seed = base::RandInt(0, std::numeric_limits<int32>::max());
   VLOG(1) << "Seeding packet loss with " << seed;
   simple_random_.set_seed(seed);
 }
 
 PacketDroppingTestWriter::~PacketDroppingTestWriter() {}
 
 void PacketDroppingTestWriter::Initialize(
-    QuicEpollConnectionHelper* helper,
+    QuicConnectionHelperInterface* helper,
     Delegate* on_can_write) {
   clock_ = helper->GetClock();
   write_unblocked_alarm_.reset(
       helper->CreateAlarm(new WriteUnblockedAlarm(this)));
   delay_alarm_.reset(
         helper->CreateAlarm(new DelayAlarm(this)));
   on_can_write_.reset(on_can_write);
 }
 
 WriteResult PacketDroppingTestWriter::WritePacket(
@@ skipping 129 matching lines @@
     : buffer(buffer, buf_len),
       self_address(self_address),
       peer_address(peer_address),
       send_time(send_time) {}
 
 PacketDroppingTestWriter::DelayedWrite::~DelayedWrite() {}
 
 }  // namespace test
 }  // namespace tools
 }  // namespace net