Reland 153623004: Remove the unified IO code on the browser

media/audio/sounds/audio_stream_handler.cc

 // Copyright 2013 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/audio/sounds/audio_stream_handler.h"
 
 #include <string>
 
 #include "base/cancelable_callback.h"
 #include "base/logging.h"
@@ skipping 41 matching lines @@
     DCHECK(AudioManager::Get()->GetTaskRunner()->BelongsToCurrentThread());
 
     if (!stream_) {
       const AudioParameters& p = wav_audio_.params();
       const AudioParameters params(AudioParameters::AUDIO_PCM_LOW_LATENCY,
                                    p.channel_layout(),
                                    p.sample_rate(),
                                    p.bits_per_sample(),
                                    kDefaultFrameCount);
       stream_ = AudioManager::Get()->MakeAudioOutputStreamProxy(
-          params, std::string(), std::string());
+          params, std::string());
       if (!stream_ || !stream_->Open()) {
         LOG(ERROR) << "Failed to open an output stream.";
         return;
       }
       stream_->SetVolume(kOutputVolumePercent);
     }
 
     {
       base::AutoLock al(state_lock_);
 
@@ skipping 142 matching lines @@
   g_observer_for_testing = observer;
 }
 
 // static
 void AudioStreamHandler::SetAudioSourceForTesting(
     AudioOutputStream::AudioSourceCallback* source) {
   g_audio_source_for_testing = source;
 }
 
 }  // namespace media