Simplifying audio network adaptor by moving receiver frame length range to ctor.

webrtc/modules/audio_coding/audio_network_adaptor/frame_length_controller.h

Index: webrtc/modules/audio_coding/audio_network_adaptor/frame_length_controller.h
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/frame_length_controller.h b/webrtc/modules/audio_coding/audio_network_adaptor/frame_length_controller.h
index d19710254d23bc3d997546d3ccaf74d4911d2684..bce7f8ff03d76e9aba131f9fb7c556164957cde0 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/frame_length_controller.h
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/frame_length_controller.h
@@ -52,8 +52,6 @@ class FrameLengthController final : public Controller {
   void MakeDecision(const NetworkMetrics& metrics,
                     AudioNetworkAdaptor::EncoderRuntimeConfig* config) override;
 
-  void SetConstraints(const Constraints& constraints) override;
-
  private:
   friend class FrameLengthControllerForTest;
 
@@ -65,9 +63,6 @@ class FrameLengthController final : public Controller {
     int to_frame_length_ms;
   };
 
-  void SetReceiverFrameLengthRange(int min_frame_length_ms,
-                                   int max_frame_length_ms);
-
   bool FrameLengthIncreasingDecision(
       const NetworkMetrics& metrics,
       const AudioNetworkAdaptor::EncoderRuntimeConfig& config) const;
@@ -78,9 +73,7 @@ class FrameLengthController final : public Controller {
 
   const Config config_;
 
-  std::vector<int> run_time_frame_lengths_ms_;
-
-  std::vector<int>::iterator frame_length_ms_;
+  std::vector<int>::const_iterator frame_length_ms_;
 
   std::map<FrameLengthChange, int> frame_length_change_criteria_;