Revert 290359 "Remove AudioBuffersState class."

trunk/src/media/audio/virtual_audio_input_stream_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 <list>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/rand_util.h"
 #include "base/synchronization/waitable_event.h"
@@ skipping 49 matching lines @@
 class TestAudioSource : public SineWaveAudioSource {
  public:
   TestAudioSource()
       : SineWaveAudioSource(
             kParams.channel_layout(), 200.0, kParams.sample_rate()),
         data_pulled_(false, false) {}
 
   virtual ~TestAudioSource() {}
 
   virtual int OnMoreData(AudioBus* audio_bus,
-                         int total_bytes_delay) OVERRIDE {
-    const int ret = SineWaveAudioSource::OnMoreData(audio_bus,
-                                                    total_bytes_delay);
+                         AudioBuffersState audio_buffers) OVERRIDE {
+    const int ret = SineWaveAudioSource::OnMoreData(audio_bus, audio_buffers);
     data_pulled_.Signal();
     return ret;
   }
 
   void WaitForDataPulls() {
     for (int i = 0; i < 3; ++i) {
       data_pulled_.Wait();
     }
   }
 
@@ skipping 255 matching lines @@
   }
   RUN_ON_AUDIO_THREAD(Close);
   WaitUntilClosed();
 }
 
 INSTANTIATE_TEST_CASE_P(SingleVersusMultithreaded,
                         VirtualAudioInputStreamTest,
                         ::testing::Values(false, true));
 
 }  // namespace media