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/DisplayHardware/DisplayMode.h b/services/surfaceflinger/DisplayHardware/DisplayMode.h
index 1775a7a..f32fb3a 100644
--- a/services/surfaceflinger/DisplayHardware/DisplayMode.h
+++ b/services/surfaceflinger/DisplayHardware/DisplayMode.h
@@ -30,8 +30,8 @@
 #include <scheduler/Fps.h>
 
 #include "DisplayHardware/Hal.h"
+#include "FlagManager.h"
 #include "Scheduler/StrongTyping.h"
-#include "Utils/FlagUtils.h"
 
 namespace android {
 
@@ -50,7 +50,6 @@
 
 using DisplayModes = ftl::SmallMap<DisplayModeId, DisplayModePtr, 3>;
 using DisplayModeIterator = DisplayModes::const_iterator;
-using namespace com::android::graphics::surfaceflinger;
 
 class DisplayMode {
 public:
@@ -140,7 +139,7 @@
     // Peak refresh rate represents the highest refresh rate that can be used
     // for the presentation.
     Fps getPeakFps() const {
-        return flagutils::vrrConfigEnabled() && mVrrConfig
+        return FlagManager::getInstance().vrr_config() && mVrrConfig
                 ? Fps::fromPeriodNsecs(mVrrConfig->minFrameIntervalNs)
                 : mVsyncRate;
     }