Revert "SF: pass a render rate to VsyncTracker instead of a divisor"

Revert submission 21422016

Reason for revert: DM P0 (b/269561042)

Reverted changes: /q/submissionid:21422016

Bug: 269561042
Change-Id: I118dd75ea379673d649d3c75960f18ef45b3749f
(cherry picked from commit 3d21d3afa1056efacf702b74449f9e2e7b5701f1)
Merged-In: I118dd75ea379673d649d3c75960f18ef45b3749f
diff --git a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
index 2908834..47c2dee 100644
--- a/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
+++ b/services/surfaceflinger/tests/unittests/VSyncDispatchRealtimeTest.cpp
@@ -54,7 +54,7 @@
     void resetModel() final {}
     bool needsMoreSamples() const final { return false; }
     bool isVSyncInPhase(nsecs_t, Fps) const final { return false; }
-    void setRenderRate(Fps) final {}
+    void setDivisor(unsigned) final {}
     void dump(std::string&) const final {}
 
 private:
@@ -92,7 +92,7 @@
     void resetModel() final {}
     bool needsMoreSamples() const final { return false; }
     bool isVSyncInPhase(nsecs_t, Fps) const final { return false; }
-    void setRenderRate(Fps) final {}
+    void setDivisor(unsigned) final {}
     void dump(std::string&) const final {}
 
 private: