Remove AudioBuffersState usage in Chromium

media/audio/audio_output_controller_unittest.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 "base/basictypes.h"
 #include "base/bind.h"
 #include "base/environment.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 174 matching lines @@
           .Times(num_times_to_be_started);
     }
 
     controller_->StartDiverting(&mock_stream_);
   }
 
   void ReadDivertedAudioData() {
     scoped_ptr<AudioBus> dest = AudioBus::Create(params_);
     ASSERT_TRUE(!!mock_stream_.callback());
     const int frames_read =
-        mock_stream_.callback()->OnMoreData(dest.get(), AudioBuffersState());
+        mock_stream_.callback()->OnMoreData(dest.get(), 0);
     EXPECT_LT(0, frames_read);
     EXPECT_EQ(kBufferNonZeroData, dest->channel(0)[0]);
   }
 
   void Revert(bool was_playing) {
     if (was_playing) {
       // Expect the handler to receive one OnPlaying() call as a result of the
       // stream switching back.
       EXPECT_CALL(mock_event_handler_, OnPlaying())
           .WillOnce(SignalEvent(&play_event_));
@@ skipping 199 matching lines @@
 
 TEST_F(AudioOutputControllerTest, DivertRevertClose) {
   Create(kSamplesPerPacket);
   WaitForCreate();
   DivertNeverPlaying();
   RevertWasNotPlaying();
   Close();
 }
 
 }  // namespace media