Remove calls to deprecated MessageLoop methods in media.

media/cast/test/sender.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.
 
 // Test application that simulates a cast sender - Data can be either generated
 // or read from a file.
 
 #include <stdint.h>
 
 #include <memory>
 #include <queue>
 #include <utility>
 
 #include "base/at_exit.h"
 #include "base/base_paths.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/path_service.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/threading/thread.h"
 #include "base/time/default_tick_clock.h"
 #include "base/values.h"
 #include "media/base/media.h"
 #include "media/base/video_frame.h"
 #include "media/cast/cast_config.h"
 #include "media/cast/cast_environment.h"
 #include "media/cast/cast_sender.h"
 #include "media/cast/logging/encoding_event_subscriber.h"
@@ skipping 295 matching lines @@
       base::Bind(&WriteStatsAndDestroySubscribers,
                  cast_environment,
                  base::Passed(&video_stats_subscriber),
                  base::Passed(&audio_stats_subscriber),
                  base::Passed(&offset_estimator)),
       base::TimeDelta::FromSeconds(logging_duration_seconds));
 
   // CastSender initialization.
   std::unique_ptr<media::cast::CastSender> cast_sender =
       media::cast::CastSender::Create(cast_environment, transport_sender.get());
-  io_message_loop.PostTask(
+  io_message_loop.task_runner()->PostTask(
       FROM_HERE,
       base::Bind(&media::cast::CastSender::InitializeVideo,
                  base::Unretained(cast_sender.get()),
                  fake_media_source->get_video_config(),
                  base::Bind(&QuitLoopOnInitializationResult),
                  media::cast::CreateDefaultVideoEncodeAcceleratorCallback(),
                  media::cast::CreateDefaultVideoEncodeMemoryCallback()));
   io_message_loop.Run();  // Wait for video initialization.
-  io_message_loop.PostTask(
-      FROM_HERE,
-      base::Bind(&media::cast::CastSender::InitializeAudio,
-                 base::Unretained(cast_sender.get()),
-                 audio_config,
-                 base::Bind(&QuitLoopOnInitializationResult)));
+  io_message_loop.task_runner()->PostTask(
+      FROM_HERE, base::Bind(&media::cast::CastSender::InitializeAudio,
+                            base::Unretained(cast_sender.get()), audio_config,
+                            base::Bind(&QuitLoopOnInitializationResult)));
   io_message_loop.Run();  // Wait for audio initialization.
 
   fake_media_source->Start(cast_sender->audio_frame_input(),
                            cast_sender->video_frame_input());
   io_message_loop.Run();
   return 0;
 }