Revert of [media] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

media/cast/test/utility/udp_proxy.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 <math.h>
 #include <stdlib.h>
 #include <vector>
 
 #include "media/cast/test/utility/udp_proxy.h"
 
 #include "base/logging.h"
 #include "base/rand_util.h"
-#include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
-#include "base/thread_task_runner_handle.h"
 #include "base/threading/thread.h"
 #include "base/time/default_tick_clock.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "net/udp/udp_server_socket.h"
 
 namespace media {
 namespace cast {
 namespace test {
 
@@ skipping 710 matching lines @@
       LOG(ERROR) << "Failed to write packet.";
     }
   }
 
  private:
   void Start(base::WaitableEvent* start_event,
              net::NetLog* net_log) {
     socket_.reset(new net::UDPServerSocket(net_log, net::NetLog::Source()));
     BuildPipe(&to_dest_pipe_, new PacketSender(this, &destination_));
     BuildPipe(&from_dest_pipe_, new PacketSender(this, &return_address_));
-    to_dest_pipe_->InitOnIOThread(base::ThreadTaskRunnerHandle::Get(),
+    to_dest_pipe_->InitOnIOThread(base::MessageLoopProxy::current(),
                                   &tick_clock_);
-    from_dest_pipe_->InitOnIOThread(base::ThreadTaskRunnerHandle::Get(),
+    from_dest_pipe_->InitOnIOThread(base::MessageLoopProxy::current(),
                                     &tick_clock_);
 
     VLOG(0) << "From:" << local_port_.ToString();
     if (!destination_is_mutable_)
       VLOG(0) << "To:" << destination_.ToString();
 
     CHECK_GE(socket_->Listen(local_port_), 0);
 
     start_event->Signal();
     PollRead();
@@ skipping 98 matching lines @@
                                             destination,
                                             to_dest_pipe.Pass(),
                                             from_dest_pipe.Pass(),
                                             net_log));
   return ret.Pass();
 }
 
 }  // namespace test
 }  // namespace cast
 }  // namespace media