diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 041b439..47885a4 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -328,7 +328,6 @@
 
     static bool isLayerFocusedBasedOnPriority(int32_t priority);
     static void miniDumpHeader(std::string& result);
-    static std::string frameRateCompatibilityString(FrameRateCompatibility compatibility);
 
     // Provide unique string for each class type in the Layer hierarchy
     virtual const char* getType() const = 0;
@@ -854,12 +853,12 @@
      */
     bool hasInputInfo() const;
 
-    // Sets the parent's gameMode for this layer and all its children. Parent's gameMode is applied
-    // only to layers that do not have the GAME_MODE_METADATA set by WMShell. Any layer(along with
-    // its children) that has the metadata set will use the gameMode from the metadata.
-    void setGameModeForTree(int32_t parentGameMode);
-    void setGameMode(int32_t gameMode) { mGameMode = gameMode; };
-    int32_t getGameMode() const { return mGameMode; }
+    // Sets the GameMode for the tree rooted at this layer. A layer in the tree inherits this
+    // GameMode unless it (or an ancestor) has GAME_MODE_METADATA.
+    void setGameModeForTree(GameMode);
+
+    void setGameMode(GameMode gameMode) { mGameMode = gameMode; }
+    GameMode getGameMode() const { return mGameMode; }
 
     virtual uid_t getOwnerUid() const { return mOwnerUid; }
 
@@ -1110,9 +1109,8 @@
     // shadow radius is the set shadow radius, otherwise its the parent's shadow radius.
     float mEffectiveShadowRadius = 0.f;
 
-    // Game mode for the layer. Set by WindowManagerShell, game mode is used in
-    // metrics(SurfaceFlingerStats).
-    int32_t mGameMode = 0;
+    // Game mode for the layer. Set by WindowManagerShell and recorded by SurfaceFlingerStats.
+    GameMode mGameMode = GameMode::Unsupported;
 
     // A list of regions on this layer that should have blurs.
     const std::vector<BlurRegion> getBlurRegions() const;