[cast_channel] Create KeepAliveDelegate in CastSocket instead of in CastChannelOpenFunction

components/cast_channel/cast_socket_unittest.cc

 // Copyright 2014 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 "components/cast_channel/cast_socket.h"
 
 #include <stdint.h>
 
 #include <utility>
 #include <vector>
@@ skipping 176 matching lines @@
                        device_capabilities) {}
 
   TestCastSocket(const net::IPEndPoint& ip_endpoint,
                  int64_t timeout_ms,
                  Logger* logger,
                  net::TestNetLog* capturing_net_log,
                  uint64_t device_capabilities)
       : CastSocketImpl(ip_endpoint,
                        capturing_net_log,
                        base::TimeDelta::FromMilliseconds(timeout_ms),
-                       false,
+                       base::TimeDelta(),
+                       base::TimeDelta(),
                        logger,
                        device_capabilities,
                        AuthContext::Create()),
         capturing_net_log_(capturing_net_log),
         ip_(ip_endpoint),
         extract_cert_result_(true),
         verify_challenge_result_(true),
         verify_challenge_disallow_(false),
         tcp_unresponsive_(false),
         mock_timer_(new base::MockTimer(false, false)),
@@ skipping 554 matching lines @@
   socket_->transport()->SendMessage(
       test_message, base::Bind(&CompleteHandler::OnWriteComplete,
                                base::Unretained(&handler_)));
   RunPendingTasks();
 
   EXPECT_EQ(ReadyState::OPEN, socket_->ready_state());
   EXPECT_EQ(ChannelError::NONE, socket_->error_state());
 }
 
 }  // namespace cast_channel