[chrome/renderer/media] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

chrome/renderer/media/cast_session_delegate.h

 // 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.
 
 #ifndef CHROME_RENDERER_MEDIA_CAST_SESSION_DELEGATE_H_
 #define CHROME_RENDERER_MEDIA_CAST_SESSION_DELEGATE_H_
 
 #include <map>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_checker.h"
 #include "base/time/default_tick_clock.h"
 #include "media/cast/cast_config.h"
 #include "media/cast/cast_sender.h"
 #include "media/cast/logging/logging_defines.h"
 
 namespace base {
 class BinaryValue;
 class DictionaryValue;
-class MessageLoopProxy;
+class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace media {
 class VideoFrame;
 
 namespace cast {
 class CastEnvironment;
 class FrameInput;
 class RawEventSubscriberBundle;
 
@@ skipping 28 matching lines @@
   virtual void ReceivePacket(scoped_ptr<media::cast::Packet> packet) = 0;
   virtual void LogRawEvents(
       const std::vector<media::cast::PacketEvent>& packet_events,
       const std::vector<media::cast::FrameEvent>& frame_events) = 0;
 
   base::ThreadChecker thread_checker_;
   scoped_refptr<media::cast::CastEnvironment> cast_environment_;
   scoped_ptr<media::cast::CastTransportSender> cast_transport_;
 
   // Proxy to the IO message loop.
-  const scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_;
+  const scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
   base::WeakPtrFactory<CastSessionDelegateBase> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CastSessionDelegateBase);
 };
 
 // This class hosts CastSender and connects it to audio/video frame input
 // and network socket.
 // This class is created on the render thread and destroyed on the IO
 // thread. All methods are accessible only on the IO thread.
 class CastSessionDelegate : public CastSessionDelegateBase {
@@ skipping 62 matching lines @@
   VideoFrameInputAvailableCallback video_frame_input_available_callback_;
 
   scoped_ptr<media::cast::RawEventSubscriberBundle> event_subscribers_;
 
   base::WeakPtrFactory<CastSessionDelegate> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CastSessionDelegate);
 };
 
 #endif  // CHROME_RENDERER_MEDIA_CAST_SESSION_DELEGATE_H_