SurfaceFlinger: use setActiveConfigWithConstraints

Remove setActiveConfig and use setActiveConfigWithConstraints
instead. Use the return parameter of setActiveConfigWithConstraints to know
whether a refresh is required and when.

Fixes: 142753004
Bug: 141329414
Test: observe refresh rate switching thru systrace
Change-Id: Ie67a3be9180e7a367fc9e73425598d53a5fd6578
diff --git a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
index c4b8408..8a7c132 100644
--- a/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
+++ b/services/surfaceflinger/tests/unittests/TestableSurfaceFlinger.h
@@ -84,7 +84,8 @@
     }
 
     std::unique_ptr<Scheduler> createScheduler(std::function<void(bool)>,
-                                               const scheduler::RefreshRateConfigs&) override {
+                                               const scheduler::RefreshRateConfigs&,
+                                               ISchedulerCallback&) override {
         return nullptr;
     }