Remove reference counting from media::DemuxerStream and friends.

media/filters/decrypting_audio_decoder.cc

 // Copyright (c) 2012 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/filters/decrypting_audio_decoder.h"
 
 #include <cstdlib>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 21 matching lines @@
   return std::abs(timestamp_1.InMicroseconds() - timestamp_2.InMicroseconds()) >
          kOutOfSyncThresholdInMicroseconds;
 }
 
 DecryptingAudioDecoder::DecryptingAudioDecoder(
     const scoped_refptr<base::MessageLoopProxy>& message_loop,
     const SetDecryptorReadyCB& set_decryptor_ready_cb)
     : message_loop_(message_loop),
       weak_factory_(this),
       state_(kUninitialized),
+      demuxer_stream_(NULL),
       set_decryptor_ready_cb_(set_decryptor_ready_cb),
       decryptor_(NULL),
       key_added_while_decode_pending_(false),
       bits_per_channel_(0),
       channel_layout_(CHANNEL_LAYOUT_NONE),
       samples_per_second_(0),
       bytes_per_sample_(0),
       output_timestamp_base_(kNoTimestamp()),
       total_samples_decoded_(0) {
 }
 
 void DecryptingAudioDecoder::Initialize(
-    const scoped_refptr<DemuxerStream>& stream,
+    DemuxerStream* stream,
     const PipelineStatusCB& status_cb,
     const StatisticsCB& statistics_cb) {
   DVLOG(2) << "Initialize()";
   DCHECK(message_loop_->BelongsToCurrentThread());
   DCHECK_EQ(state_, kUninitialized) << state_;
   DCHECK(stream);
 
   weak_this_ = weak_factory_.GetWeakPtr();
   init_cb_ = BindToCurrentLoop(status_cb);
 
@@ skipping 412 matching lines @@
 
 base::TimeDelta DecryptingAudioDecoder::NumberOfSamplesToDuration(
     int number_of_samples) const {
   DCHECK(samples_per_second_);
   return base::TimeDelta::FromMicroseconds(base::Time::kMicrosecondsPerSecond *
                                            number_of_samples /
                                            samples_per_second_);
 }
 
 }  // namespace media