Clean up FlexfecReceiveStream ctor signatures. (CL0)

webrtc/call/flexfec_receive_stream.h

Index: webrtc/call/flexfec_receive_stream.h
diff --git a/webrtc/call/flexfec_receive_stream.h b/webrtc/call/flexfec_receive_stream.h
index 4f7aee0a76f9d3474e39fbd0fee026efb37717c3..384a94d1d58091e386b39344ae54888a236e5f92 100644
--- a/webrtc/call/flexfec_receive_stream.h
+++ b/webrtc/call/flexfec_receive_stream.h
@@ -25,12 +25,10 @@ namespace internal {
 
 class FlexfecReceiveStream : public webrtc::FlexfecReceiveStream {
  public:
-  FlexfecReceiveStream(Config configuration,
+  FlexfecReceiveStream(const Config& config,
                        RecoveredPacketReceiver* recovered_packet_callback);
   ~FlexfecReceiveStream();
 
-  const Config& config() const { return config_; }
-
   bool AddAndProcessReceivedPacket(const uint8_t* packet, size_t length);
 
   // Implements webrtc::FlexfecReceiveStream.