Move audio decoding to protocol layer

remoting/protocol/fake_connection_to_host.h

Index: remoting/protocol/fake_connection_to_host.h
diff --git a/remoting/protocol/fake_connection_to_host.h b/remoting/protocol/fake_connection_to_host.h
index e3d275b3b4e79994131521b8e1c6aaf9a35531e9..6717c21bb7d93643024f509758329c824c09e0d9 100644
--- a/remoting/protocol/fake_connection_to_host.h
+++ b/remoting/protocol/fake_connection_to_host.h
@@ -23,7 +23,9 @@ class FakeConnectionToHost : public protocol::ConnectionToHost {
   void set_client_stub(protocol::ClientStub* client_stub) override;
   void set_clipboard_stub(protocol::ClipboardStub* clipboard_stub) override;
   void set_video_renderer(protocol::VideoRenderer* video_renderer) override;
-  void set_audio_stub(protocol::AudioStub* audio_stub) override;
+  virtual void InitializeAudio(
+      scoped_refptr<base::SingleThreadTaskRunner> audio_decode_task_runner,
+      base::WeakPtr<protocol::AudioStub> audio_stub) override;
   void Connect(std::unique_ptr<protocol::Session> session,
                scoped_refptr<protocol::TransportContext> transport_context,
                HostEventCallback* event_callback) override;