--- old/src/hotspot/share/gc/g1/g1Policy.hpp	2020-07-17 16:51:59.398593616 +0000
+++ new/src/hotspot/share/gc/g1/g1Policy.hpp	2020-07-17 16:51:59.134588500 +0000
@@ -56,11 +56,10 @@
 class G1Policy: public CHeapObj<mtGC> {
  private:
 
-  static G1IHOPControl* create_ihop_control(const G1Predictions* predictor);
+  static G1IHOPControl* create_ihop_control(const G1OldGenAllocationTracker* old_gen_alloc_tracker,
+                                            const G1Predictions* predictor);
   // Update the IHOP control with necessary statistics.
-  void update_ihop_prediction(double mutator_time_s,
-                              size_t mutator_alloc_bytes,
-                              size_t young_gen_size,
+  void update_ihop_prediction(size_t young_gen_size,
                               bool this_gc_was_young_only);
   void report_ihop_statistics();