Remove AudioBuffersState usage in Chromium

media/audio/audio_output_controller_unittest.cc

Index: media/audio/audio_output_controller_unittest.cc
diff --git a/media/audio/audio_output_controller_unittest.cc b/media/audio/audio_output_controller_unittest.cc
index 125763c9bfe24cc1657d42a8d2228cc9ec5f8184..a4ecdb8f952ce2441965ac0c710cc5e913c22149 100644
--- a/media/audio/audio_output_controller_unittest.cc
+++ b/media/audio/audio_output_controller_unittest.cc
@@ -192,7 +192,7 @@ class AudioOutputControllerTest : public testing::Test {
     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]);
   }