Remove base::SupportsWeakPtr from {Audio,Video}Sender

media/cast/sender/audio_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/sender/audio_sender.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "media/cast/common/rtp_time.h"
 #include "media/cast/net/cast_transport_config.h"
 #include "media/cast/sender/audio_encoder.h"
 
 namespace media {
 namespace cast {
 
 AudioSender::AudioSender(scoped_refptr<CastEnvironment> cast_environment,
                          const FrameSenderConfig& audio_config,
                          const StatusChangeCallback& status_change_cb,
                          CastTransport* const transport_sender)
     : FrameSender(cast_environment,
                   transport_sender,
                   audio_config,
                   NewFixedCongestionControl(audio_config.max_bitrate)),
-      samples_in_encoder_(0),
-      weak_factory_(this) {
+      samples_in_encoder_(0) {
   if (!audio_config.use_external_encoder) {
     audio_encoder_.reset(new AudioEncoder(
         cast_environment, audio_config.channels, audio_config.rtp_timebase,
         audio_config.max_bitrate, audio_config.codec,
-        base::Bind(&AudioSender::OnEncodedAudioFrame,
-                   weak_factory_.GetWeakPtr(), audio_config.max_bitrate)));
+        base::Bind(&AudioSender::OnEncodedAudioFrame, AsWeakPtr(),
+                   audio_config.max_bitrate)));
   }
 
   // AudioEncoder provides no operational status changes during normal use.
   // Post a task now with its initialization result status to allow the client
   // to start sending frames.
   cast_environment_->PostTask(
       CastEnvironment::MAIN,
       FROM_HERE,
       base::Bind(status_change_cb,
                  audio_encoder_ ? audio_encoder_->InitializationResult() :
@@ skipping 46 matching lines @@
   DCHECK(cast_environment_->CurrentlyOn(CastEnvironment::MAIN));
 
   samples_in_encoder_ -= audio_encoder_->GetSamplesPerFrame() + samples_skipped;
   DCHECK_GE(samples_in_encoder_, 0);
 
   SendEncodedFrame(encoder_bitrate, std::move(encoded_frame));
 }
 
 }  // namespace cast
 }  // namespace media