Revert^2 "Move FlagManager to a common SF lib"

27a51323615008f4ec2b87e8f066591b5041516a

Change-Id: I45461ab916c1c61710b18ec8078c2a939c793b67
diff --git a/services/surfaceflinger/Scheduler/LayerHistory.cpp b/services/surfaceflinger/Scheduler/LayerHistory.cpp
index 450ba1d..d309adc 100644
--- a/services/surfaceflinger/Scheduler/LayerHistory.cpp
+++ b/services/surfaceflinger/Scheduler/LayerHistory.cpp
@@ -31,9 +31,9 @@
 #include <string>
 #include <utility>
 
+#include <common/FlagManager.h>
 #include "../Layer.h"
 #include "EventThread.h"
-#include "FlagManager.h"
 #include "LayerInfo.h"
 
 namespace android::scheduler {