Remove reference counting from media::DemuxerStream and friends.

media/filters/ffmpeg_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/ffmpeg_audio_decoder.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/message_loop_proxy.h"
@@ skipping 23 matching lines @@
   // 1. FFmpeg didn't read anything.
   // 2. FFmpeg didn't output anything.
   // 3. An end of stream buffer is received.
   return result == 0 && decoded_size == 0 && input->IsEndOfStream();
 }
 
 FFmpegAudioDecoder::FFmpegAudioDecoder(
     const scoped_refptr<base::MessageLoopProxy>& message_loop)
     : message_loop_(message_loop),
       weak_factory_(this),
+      demuxer_stream_(NULL),
       codec_context_(NULL),
       bits_per_channel_(0),
       channel_layout_(CHANNEL_LAYOUT_NONE),
       channels_(0),
       samples_per_second_(0),
       av_sample_format_(0),
       bytes_per_frame_(0),
       last_input_timestamp_(kNoTimestamp()),
       output_bytes_to_drop_(0),
       av_frame_(NULL) {
 }
 
 void FFmpegAudioDecoder::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);
 
   FFmpegGlue::InitializeFFmpeg();
 
   if (demuxer_stream_) {
     // TODO(scherkus): initialization currently happens more than once in
     // PipelineIntegrationTest.BasicPlayback.
@@ skipping 429 matching lines @@
     // Decoding finished successfully, update statistics.
     if (result > 0) {
       PipelineStatistics statistics;
       statistics.audio_bytes_decoded = result;
       statistics_cb_.Run(statistics);
     }
   } while (packet.size > 0);
 }
 
 }  // namespace media