Remove unused parameter "stream" from all variants of OnMoreData().

media/audio/mac/audio_output_mac.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/audio/mac/audio_output_mac.h"
 
 #include <CoreServices/CoreServices.h>
 
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
@@ skipping 389 matching lines @@
   AudioSourceCallback* source = audio_stream->GetSource();
   if (!source)
     return;
 
   // Adjust the number of pending bytes by subtracting the amount played.
   if (!static_cast<AudioQueueUserData*>(buffer->mUserData)->empty_buffer)
     audio_stream->pending_bytes_ -= buffer->mAudioDataByteSize;
   uint32 capacity = buffer->mAudioDataBytesCapacity;
   // TODO(sergeyu): Specify correct hardware delay for AudioBuffersState.
   uint32 filled = source->OnMoreData(
-      audio_stream, reinterpret_cast<uint8*>(buffer->mAudioData), capacity,
+      reinterpret_cast<uint8*>(buffer->mAudioData), capacity,
       AudioBuffersState(audio_stream->pending_bytes_, 0));
 
   // In order to keep the callback running, we need to provide a positive amount
   // of data to the audio queue. To simulate the behavior of Windows, we write
   // a buffer of silence.
   if (!filled) {
     CHECK(audio_stream->silence_bytes_ <= static_cast<int>(capacity));
     filled = audio_stream->silence_bytes_;
 
     // Assume unsigned audio.
@@ skipping 103 matching lines @@
   source_ = source;
 }
 
 AudioOutputStream::AudioSourceCallback*
 PCMQueueOutAudioOutputStream::GetSource() {
   base::AutoLock lock(source_lock_);
   return source_;
 }
 
 }  // namespace media