Remove reference counting from media::DemuxerStream and friends.

media/filters/opus_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/opus_audio_decoder.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/message_loop_proxy.h"
@@ skipping 226 matching lines @@
     LOG(WARNING) << "Inconsistent channel mapping.";
 
   for (int i = 0; i < header->channels; ++i)
     header->stream_map[i] = *(data + kOpusHeaderStreamMapOffset + i);
 }
 
 OpusAudioDecoder::OpusAudioDecoder(
     const scoped_refptr<base::MessageLoopProxy>& message_loop)
     : message_loop_(message_loop),
       weak_factory_(this),
+      demuxer_stream_(NULL),
       opus_decoder_(NULL),
       bits_per_channel_(0),
       channel_layout_(CHANNEL_LAYOUT_NONE),
       samples_per_second_(0),
       last_input_timestamp_(kNoTimestamp()),
       output_bytes_to_drop_(0),
       skip_samples_(0) {
 }
 
 void OpusAudioDecoder::Initialize(
-    const scoped_refptr<DemuxerStream>& stream,
+    DemuxerStream* stream,
     const PipelineStatusCB& status_cb,
     const StatisticsCB& statistics_cb) {
   DCHECK(message_loop_->BelongsToCurrentThread());
   PipelineStatusCB initialize_cb = BindToCurrentLoop(status_cb);
 
   if (demuxer_stream_) {
     // TODO(scherkus): initialization currently happens more than once in
     // PipelineIntegrationTest.BasicPlayback.
     LOG(ERROR) << "Initialize has already been called.";
     CHECK(false);
@@ skipping 290 matching lines @@
 
   // Decoding finished successfully, update statistics.
   PipelineStatistics statistics;
   statistics.audio_bytes_decoded = decoded_audio_size;
   statistics_cb_.Run(statistics);
 
   return true;
 }
 
 }  // namespace media