libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_ratectrl.h

Index: source/libvpx/vp9/encoder/vp9_ratectrl.h
diff --git a/source/libvpx/vp9/encoder/vp9_ratectrl.h b/source/libvpx/vp9/encoder/vp9_ratectrl.h
index 705796a8de67936a8eb788039e1212b67823588b..869f6e59e9796585fd759af9a2d246f96710688e 100644
--- a/source/libvpx/vp9/encoder/vp9_ratectrl.h
+++ b/source/libvpx/vp9/encoder/vp9_ratectrl.h
@@ -73,6 +73,7 @@ typedef struct {
 
   int frames_since_golden;
   int frames_till_gf_update_due;
+  int min_gf_interval;
   int max_gf_interval;
   int static_scene_max_gf_interval;
   int baseline_gf_interval;
@@ -238,8 +239,8 @@ int vp9_frame_type_qdelta(const struct VP9_COMP *cpi, int rf_level, int q);
 
 void vp9_rc_update_framerate(struct VP9_COMP *cpi);
 
-void vp9_rc_set_gf_max_interval(const struct VP9_COMP *const cpi,
-                                RATE_CONTROL *const rc);
+void vp9_rc_set_gf_interval_range(const struct VP9_COMP *const cpi,
+                                  RATE_CONTROL *const rc);
 
 void vp9_set_target_rate(struct VP9_COMP *cpi);