Revert 290359 "Remove AudioBuffersState class."

trunk/src/media/audio/mac/audio_auhal_mac.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/mac/audio_auhal_mac.h"
 
 #include <CoreServices/CoreServices.h>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 210 matching lines @@
 void AUHALStream::ProvideInput(int frame_delay, AudioBus* dest) {
   base::AutoLock auto_lock(source_lock_);
   if (!source_) {
     dest->Zero();
     return;
   }
 
   // Supply the input data and render the output data.
   source_->OnMoreData(
       dest,
-      current_hardware_pending_bytes_ +
-      frame_delay * params_.GetBytesPerFrame());
+      AudioBuffersState(0,
+                        current_hardware_pending_bytes_ +
+                            frame_delay * params_.GetBytesPerFrame()));
   dest->Scale(volume_);
 }
 
 // AUHAL callback.
 OSStatus AUHALStream::InputProc(
     void* user_data,
     AudioUnitRenderActionFlags* flags,
     const AudioTimeStamp* output_time_stamp,
     UInt32 bus_number,
     UInt32 number_of_frames,
@@ skipping 223 matching lines @@
   result = AudioUnitInitialize(audio_unit_);
   if (result != noErr) {
     OSSTATUS_DLOG(ERROR, result) << "AudioUnitInitialize() failed.";
     return false;
   }
 
   return true;
 }
 
 }  // namespace media