Remove use of deprecated MessageLoop methods in blimp.

blimp/net/tcp_engine_transport.cc

 // Copyright 2015 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 "blimp/net/tcp_engine_transport.h"
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/callback_helpers.h"
+#include "base/location.h"
 #include "base/memory/ptr_util.h"
-#include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "blimp/net/stream_socket_connection.h"
 #include "net/socket/stream_socket.h"
 #include "net/socket/tcp_server_socket.h"
 
 namespace blimp {
 
 TCPEngineTransport::TCPEngineTransport(const net::IPEndPoint& address,
                                        BlimpConnectionStatistics* statistics,
                                        net::NetLog* net_log)
     : address_(address),
       blimp_connection_statistics_(statistics),
       net_log_(net_log) {
   DCHECK(blimp_connection_statistics_);
 }
 
 TCPEngineTransport::~TCPEngineTransport() {}
 
 void TCPEngineTransport::Connect(const net::CompletionCallback& callback) {
   DCHECK(!accepted_socket_);
   DCHECK(!callback.is_null());
 
   if (!server_socket_) {
     server_socket_.reset(
         new net::TCPServerSocket(net_log_, net::NetLog::Source()));
     int result = server_socket_->Listen(address_, 5);
     if (result != net::OK) {
       server_socket_.reset();
-      base::MessageLoop::current()->PostTask(FROM_HERE,
-                                             base::Bind(callback, result));
+      base::ThreadTaskRunnerHandle::Get()->PostTask(
+          FROM_HERE, base::Bind(callback, result));
       return;
     }
   }
 
   net::CompletionCallback accept_callback = base::Bind(
       &TCPEngineTransport::OnTCPConnectAccepted, base::Unretained(this));
 
   int result = server_socket_->Accept(&accepted_socket_, accept_callback);
   if (result == net::ERR_IO_PENDING) {
     connect_callback_ = callback;
     return;
   }
 
   if (result != net::OK) {
     // TODO(haibinlu): investigate when we can keep using this server socket.
     server_socket_.reset();
   }
 
-  base::MessageLoop::current()->PostTask(FROM_HERE,
-                                         base::Bind(callback, result));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
+                                                base::Bind(callback, result));
 }
 
 std::unique_ptr<BlimpConnection> TCPEngineTransport::TakeConnection() {
   DCHECK(connect_callback_.is_null());
   DCHECK(accepted_socket_);
   return base::WrapUnique(new StreamSocketConnection(
       std::move(accepted_socket_), blimp_connection_statistics_));
 }
 
 const char* TCPEngineTransport::GetName() const {
   return "TCP";
 }
 
 int TCPEngineTransport::GetLocalAddress(net::IPEndPoint* address) const {
   DCHECK(server_socket_);
   return server_socket_->GetLocalAddress(address);
 }
 
 void TCPEngineTransport::OnTCPConnectAccepted(int result) {
   DCHECK_NE(net::ERR_IO_PENDING, result);
   DCHECK(accepted_socket_);
   if (result != net::OK) {
     accepted_socket_.reset();
   }
   base::ResetAndReturn(&connect_callback_).Run(result);
 }
 
 }  // namespace blimp