media: Reland "Simplify {Audio|Video}Decoder initialization callback."

media/filters/decoder_stream_traits.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/filters/decoder_stream_traits.h"
 
 #include "base/logging.h"
 #include "media/base/audio_buffer.h"
 #include "media/base/audio_decoder.h"
 #include "media/base/audio_decoder_config.h"
 #include "media/base/video_decoder.h"
 #include "media/base/video_decoder_config.h"
 #include "media/base/video_frame.h"
 
 namespace media {
 
 std::string DecoderStreamTraits<DemuxerStream::AUDIO>::ToString() {
   return "audio";
 }
 
 void DecoderStreamTraits<DemuxerStream::AUDIO>::InitializeDecoder(
     DecoderType* decoder,
     DemuxerStream* stream,
-    const PipelineStatusCB& status_cb,
+    const InitCB& init_cb,
     const OutputCB& output_cb) {
   DCHECK(stream->audio_decoder_config().IsValidConfig());
-  decoder->Initialize(stream->audio_decoder_config(), status_cb, output_cb);
+  decoder->Initialize(stream->audio_decoder_config(), init_cb, output_cb);
 }
 
 void DecoderStreamTraits<DemuxerStream::AUDIO>::ReportStatistics(
     const StatisticsCB& statistics_cb,
     int bytes_decoded) {
   PipelineStatistics statistics;
   statistics.audio_bytes_decoded = bytes_decoded;
   statistics_cb.Run(statistics);
 }
 
 scoped_refptr<DecoderStreamTraits<DemuxerStream::AUDIO>::OutputType>
     DecoderStreamTraits<DemuxerStream::AUDIO>::CreateEOSOutput() {
   return OutputType::CreateEOSBuffer();
 }
 
 std::string DecoderStreamTraits<DemuxerStream::VIDEO>::ToString() {
   return "video";
 }
 
 void DecoderStreamTraits<DemuxerStream::VIDEO>::InitializeDecoder(
     DecoderType* decoder,
     DemuxerStream* stream,
-    const PipelineStatusCB& status_cb,
+    const InitCB& init_cb,
     const OutputCB& output_cb) {
   DCHECK(stream->video_decoder_config().IsValidConfig());
   decoder->Initialize(stream->video_decoder_config(),
                       stream->liveness() == DemuxerStream::LIVENESS_LIVE,
-                      status_cb, output_cb);
+                      init_cb, output_cb);
 }
 
 bool DecoderStreamTraits<DemuxerStream::VIDEO>::NeedsBitstreamConversion(
     DecoderType* decoder) {
   return decoder->NeedsBitstreamConversion();
 }
 
 void DecoderStreamTraits<DemuxerStream::VIDEO>::ReportStatistics(
     const StatisticsCB& statistics_cb,
     int bytes_decoded) {
   PipelineStatistics statistics;
   statistics.video_bytes_decoded = bytes_decoded;
   statistics_cb.Run(statistics);
 }
 
 scoped_refptr<DecoderStreamTraits<DemuxerStream::VIDEO>::OutputType>
     DecoderStreamTraits<DemuxerStream::VIDEO>::CreateEOSOutput() {
   return OutputType::CreateEOSFrame();
 }
 
 }  // namespace media