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

media/cast/transport/transport_video_sender.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 "media/cast/transport/transport_video_sender.h"
-
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/message_loop/message_loop.h"
-#include "media/base/video_frame.h"
-#include "media/cast/transport/pacing/paced_sender.h"
-
-namespace media {
-namespace cast {
-namespace transport {
-
-TransportVideoSender::TransportVideoSender(
-    const CastTransportVideoConfig& config,
-    base::TickClock* clock,
-    const scoped_refptr<base::SingleThreadTaskRunner>& transport_task_runner,
-    PacedSender* const paced_packet_sender)
-    : rtp_sender_(clock, transport_task_runner, paced_packet_sender) {
-  initialized_ = rtp_sender_.InitializeVideo(config) &&
-      encryptor_.Initialize(config.rtp.config.aes_key,
-                            config.rtp.config.aes_iv_mask);
-}
-
-TransportVideoSender::~TransportVideoSender() {}
-
-void TransportVideoSender::SendFrame(const EncodedFrame& video_frame) {
-  if (!initialized_) {
-    return;
-  }
-  if (encryptor_.initialized()) {
-    EncodedFrame encrypted_frame;
-    if (!EncryptVideoFrame(video_frame, &encrypted_frame)) {
-      NOTREACHED();
-      return;
-    }
-    rtp_sender_.SendFrame(encrypted_frame);
-  } else {
-    rtp_sender_.SendFrame(video_frame);
-  }
-}
-
-bool TransportVideoSender::EncryptVideoFrame(
-    const EncodedFrame& video_frame, EncodedFrame* encrypted_frame) {
-  if (!initialized_) {
-    return false;
-  }
-  if (!encryptor_.Encrypt(
-          video_frame.frame_id, video_frame.data, &(encrypted_frame->data)))
-    return false;
-
-  encrypted_frame->dependency = video_frame.dependency;
-  encrypted_frame->frame_id = video_frame.frame_id;
-  encrypted_frame->referenced_frame_id = video_frame.referenced_frame_id;
-  encrypted_frame->rtp_timestamp = video_frame.rtp_timestamp;
-  encrypted_frame->reference_time = video_frame.reference_time;
-  return true;
-}
-
-void TransportVideoSender::ResendPackets(
-    const MissingFramesAndPacketsMap& missing_frames_and_packets) {
-  if (!initialized_) {
-    return;
-  }
-  rtp_sender_.ResendPackets(missing_frames_and_packets);
-}
-
-}  // namespace transport
-}  // namespace cast
-}  // namespace media