[Cast] Cleanup: Remove TransportXXXXXSender, an unnecessary layer of indirection.

media/cast/transport/transport_audio_sender.h

-// 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.
-
-#ifndef MEDIA_CAST_TRANSPORT_TRANSPORT_AUDIO_SENDER_H_
-#define MEDIA_CAST_TRANSPORT_TRANSPORT_AUDIO_SENDER_H_
-
-#include "base/callback.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/threading/non_thread_safe.h"
-#include "media/cast/transport/rtp_sender/rtp_sender.h"
-#include "media/cast/transport/utility/transport_encryption_handler.h"
-
-namespace media {
-namespace cast {
-
-namespace transport {
-
-class PacedSender;
-
-// It's only called from the main cast transport thread.
-class TransportAudioSender : public base::NonThreadSafe {
- public:
-  TransportAudioSender(
-      const CastTransportAudioConfig& config,
-      base::TickClock* clock,
-      const scoped_refptr<base::SingleThreadTaskRunner>& transport_task_runner,
-      PacedSender* const paced_packet_sender);
-
-  virtual ~TransportAudioSender();
-
-  // Handles the encoded audio frames to be processed.
-  // Frames will be encrypted, packetized and transmitted to the network.
-  void SendFrame(const EncodedFrame& audio_frame);
-
-  // Retransmision request.
-  void ResendPackets(
-      const MissingFramesAndPacketsMap& missing_frames_and_packets);
-
-  size_t send_packet_count() const { return rtp_sender_.send_packet_count(); }
-  size_t send_octet_count() const { return rtp_sender_.send_octet_count(); }
-  uint32 ssrc() const { return rtp_sender_.ssrc(); }
-  bool initialized() const { return initialized_; }
-
- private:
-  friend class LocalRtcpAudioSenderFeedback;
-
-  // Caller must allocate the destination |encrypted_frame|. The data member
-  // will be resized to hold the encrypted size.
-  bool EncryptAudioFrame(const EncodedFrame& audio_frame,
-                         EncodedFrame* encrypted_frame);
-
-  RtpSender rtp_sender_;
-  TransportEncryptionHandler encryptor_;
-  bool initialized_;
-
-  DISALLOW_IMPLICIT_CONSTRUCTORS(TransportAudioSender);
-};
-
-}  // namespace transport
-}  // namespace cast
-}  // namespace media
-
-#endif  // MEDIA_CAST_TRANSPORT_TRANSPORT_AUDIO_SENDER_H_