Replace AudioDecoderConfig with simple accessors on AudioDecoder.

content/renderer/media/audio_renderer_impl.cc

 // Copyright (c) 2011 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 "content/renderer/media/audio_renderer_impl.h"
 
 #include <math.h>
 
 #include <algorithm>
 
@@ skipping 65 matching lines @@
       predicted_play_time = base::TimeDelta::FromMicroseconds(
           static_cast<int64>(ceil(predicted_play_time.InMicroseconds() *
                                   playback_rate)));
     }
     earliest_end_time_ =
         std::max(earliest_end_time_,
                  time_now + request_delay + predicted_play_time);
   }
 }
 
-bool AudioRendererImpl::OnInitialize(const media::AudioDecoderConfig& config) {
-  AudioParameters params(config);
-  params.format = AudioParameters::AUDIO_PCM_LINEAR;
+bool AudioRendererImpl::OnInitialize(int bits_per_channel,
+                                     ChannelLayout channel_layout,
+                                     int sample_rate) {
+  AudioParameters params(AudioParameters::AUDIO_PCM_LINEAR, channel_layout,
+                         sample_rate, bits_per_channel, kSamplesPerBuffer);
 
   bytes_per_second_ = params.GetBytesPerSecond();
 
   ChildProcess::current()->io_message_loop()->PostTask(
       FROM_HERE,
       NewRunnableMethod(this, &AudioRendererImpl::CreateStreamTask, params));
   return true;
 }
 
 void AudioRendererImpl::OnStop() {
@@ skipping 385 matching lines @@
     media::SetActualDataSizeInBytes(shared_memory_.get(),
                                     shared_memory_size_,
                                     size);
     UpdateEarliestEndTime(size, request_delay, time_now);
   }
 }
 
 void AudioRendererImpl::Send(IPC::Message* message) {
   filter_->Send(message);
 }