SF: move trunk stable flags to FlagManager

Test: presubmit
Bug: 297389311
Bug: 278199093
Bug: 284845445
Bug: 273702768
Bug: 259132483
Bug: 283055450
Change-Id: I2a85b2534ac8d472acd0de443785317871bbfe89
diff --git a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
index eb69d0b..5892b2b 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
+++ b/services/surfaceflinger/Scheduler/RefreshRateSelector.cpp
@@ -38,7 +38,6 @@
 
 #include "../SurfaceFlingerProperties.h"
 #include "RefreshRateSelector.h"
-#include "Utils/FlagUtils.h"
 
 #include <com_android_graphics_surfaceflinger_flags.h>
 
@@ -115,7 +114,7 @@
     using fps_approx_ops::operator/;
     // use signed type as `fps / range.max` might be 0
     auto start = std::max(1, static_cast<int>(peakFps / range.max) - 1);
-    if (flagutils::vrrConfigEnabled()) {
+    if (FlagManager::getInstance().vrr_config()) {
         start = std::max(1,
                          static_cast<int>(vsyncRate /
                                           std::min(range.max, peakFps, fps_approx_ops::operator<)) -