Revert 290359 "Remove AudioBuffersState class."

trunk/src/media/audio/fake_audio_consumer_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/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/time/time.h"
+#include "media/audio/audio_buffers_state.h"
 #include "media/audio/audio_parameters.h"
 #include "media/audio/fake_audio_consumer.h"
 #include "media/audio/simple_sources.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 
 static const int kTestCallbacks = 5;
 
 class FakeAudioConsumerTest : public testing::Test {
  public:
   FakeAudioConsumerTest()
       : params_(
             AudioParameters::AUDIO_FAKE, CHANNEL_LAYOUT_STEREO, 44100, 8, 128),
         fake_consumer_(message_loop_.message_loop_proxy(), params_),
         source_(params_.channels(), 200.0, params_.sample_rate()) {
     time_between_callbacks_ = base::TimeDelta::FromMicroseconds(
         params_.frames_per_buffer() * base::Time::kMicrosecondsPerSecond /
         static_cast<float>(params_.sample_rate()));
   }
 
   virtual ~FakeAudioConsumerTest() {}
 
   void ConsumeData(AudioBus* audio_bus) {
-    source_.OnMoreData(audio_bus, 0);
+    source_.OnMoreData(audio_bus, AudioBuffersState());
   }
 
   void RunOnAudioThread() {
     ASSERT_TRUE(message_loop_.message_loop_proxy()->BelongsToCurrentThread());
     fake_consumer_.Start(base::Bind(
         &FakeAudioConsumerTest::ConsumeData, base::Unretained(this)));
   }
 
   void RunOnceOnAudioThread() {
     ASSERT_TRUE(message_loop_.message_loop_proxy()->BelongsToCurrentThread());
@@ skipping 90 matching lines @@
   // chance of catching the FakeAudioOutputStream doing the wrong thing.
   message_loop_.PostDelayedTask(FROM_HERE, base::Bind(
       &FakeAudioConsumerTest::StopStartOnAudioThread,
       base::Unretained(this)), time_between_callbacks_ / 2);
 
   // EndTest() will ensure the proper number of callbacks have occurred.
   message_loop_.Run();
 }
 
 }  // namespace media