Remove muted_ and playback_rate_ from media::AudioRendererAlgorithm.

media/cast/test/fake_media_source.cc

Index: media/cast/test/fake_media_source.cc
diff --git a/media/cast/test/fake_media_source.cc b/media/cast/test/fake_media_source.cc
index 07baebe6e3ef0d62317be26d6bde703b61552c0d..f3ebd9cbe1245c32c7c40b2b80ec64ff63dfd6b3 100644
--- a/media/cast/test/fake_media_source.cc
+++ b/media/cast/test/fake_media_source.cc
@@ -207,7 +207,7 @@ void FakeMediaSource::Start(scoped_refptr<AudioFrameInput> audio_frame_input,
   }
 
   // Send transcoding streams.
-  audio_algo_.Initialize(playback_rate_, audio_params_);
+  audio_algo_.Initialize(audio_params_);
   audio_algo_.FlushBuffers();
   audio_fifo_input_bus_ =
       AudioBus::Create(
@@ -476,7 +476,8 @@ void FakeMediaSource::DecodeAudio(ScopedAVPacket packet) {
       kAudioPacketsPerSecond;
   while (frames_needed_to_scale <= audio_algo_.frames_buffered()) {
     if (!audio_algo_.FillBuffer(audio_fifo_input_bus_.get(),
-                                audio_fifo_input_bus_->frames())) {
+                                audio_fifo_input_bus_->frames(),
+                                playback_rate_)) {
       // Nothing can be scaled. Decode some more.
       return;
     }