Switch OnMoreData() to use AudioBus.

media/audio/linux/cras_output_unittest.cc

Index: media/audio/linux/cras_output_unittest.cc
diff --git a/media/audio/linux/cras_output_unittest.cc b/media/audio/linux/cras_output_unittest.cc
index af56ec42291c80020e46b8aec82da0cd7e82e377..a54437a36ac0bf43ca0b6b7a89372b2a50e2ecf3 100644
--- a/media/audio/linux/cras_output_unittest.cc
+++ b/media/audio/linux/cras_output_unittest.cc
@@ -19,8 +19,8 @@ namespace media {
 
 class MockAudioSourceCallback : public AudioOutputStream::AudioSourceCallback {
  public:
-  MOCK_METHOD3(OnMoreData, uint32(uint8* dest, uint32 max_size,
-                                  AudioBuffersState buffers_state));
+  MOCK_METHOD2(OnMoreData, int(AudioBus* audio_bus,
+                               AudioBuffersState buffers_state));
   MOCK_METHOD2(OnError, void(AudioOutputStream* stream, int code));
 };
 
@@ -193,16 +193,14 @@ TEST_F(CrasOutputStreamTest, StartStop) {
 TEST_F(CrasOutputStreamTest, RenderFrames) {
   CrasOutputStream* test_stream = CreateStream(CHANNEL_LAYOUT_MONO);
   MockAudioSourceCallback mock_callback;
-  const uint32 amount_rendered_return = 2048;
 
   // Open the stream.
   ASSERT_TRUE(test_stream->Open());
   EXPECT_EQ(CrasOutputStream::kIsOpened, test_stream->state());
 
   // Render Callback.
-  EXPECT_CALL(mock_callback, OnMoreData(_,
-          kTestFramesPerPacket * kTestBytesPerFrame, _))
-      .WillRepeatedly(Return(amount_rendered_return));
+  EXPECT_CALL(mock_callback, OnMoreData(_, _))
+      .WillRepeatedly(Return(kTestFramesPerPacket));
 
   // Start.
   test_stream->Start(&mock_callback);