Revert "SurfaceFlinger: override frame rate for applications that use setFrameRate"

This reverts commit 2c6716b58f05c9de26868677001b901c5948afde.

Reason for revert: Causes a deadlock in SurfaceFlinger: b/176299745

Change-Id: I20402c3d97eb0fad4270e1fd2147ca66c4f6bc84
diff --git a/services/surfaceflinger/Scheduler/RefreshRateConfigs.h b/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
index 6c83f8b..612babf 100644
--- a/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
+++ b/services/surfaceflinger/Scheduler/RefreshRateConfigs.h
@@ -221,8 +221,6 @@
     struct LayerRequirement {
         // Layer's name. Used for debugging purposes.
         std::string name;
-        // Layer's owner uid
-        uid_t ownerUid = static_cast<uid_t>(-1);
         // Layer vote type.
         LayerVoteType vote = LayerVoteType::NoVote;
         // Layer's desired refresh rate, if applicable.
@@ -318,16 +316,18 @@
     // refresh rates.
     KernelIdleTimerAction getIdleTimerAction() const;
 
-    // Returns a divider for the current refresh rate
-    int getRefreshRateDivider(Fps frameRate) const EXCLUDES(mLock);
+    // Stores the preferred refresh rate that an app should run at.
+    // FrameRateOverride.refreshRateHz == 0 means no preference.
+    void setPreferredRefreshRateForUid(FrameRateOverride) EXCLUDES(mLock);
 
-    // Returns the frame rate override for each uid
-    using UidToFrameRateOverride = std::map<uid_t, Fps>;
-    UidToFrameRateOverride getFrameRateOverrides(const std::vector<LayerRequirement>& layers,
-                                                 Fps displayFrameRate) const EXCLUDES(mLock);
+    // Returns a divider for the current refresh rate
+    int getRefreshRateDividerForUid(uid_t) const EXCLUDES(mLock);
 
     void dump(std::string& result) const EXCLUDES(mLock);
 
+    // Returns the current frame rate overrides
+    std::vector<FrameRateOverride> getFrameRateOverrides() EXCLUDES(mLock);
+
 private:
     friend class RefreshRateConfigsTest;
 
@@ -364,16 +364,6 @@
     const Policy* getCurrentPolicyLocked() const REQUIRES(mLock);
     bool isPolicyValid(const Policy& policy);
 
-    // Return the display refresh rate divider to match the layer
-    // frame rate, or 0 if the display refresh rate is not a multiple of the
-    // layer refresh rate.
-    static int getFrameRateDivider(Fps displayFrameRate, Fps layerFrameRate);
-
-    // calculates a score for a layer. Used to determine the display refresh rate
-    // and the frame rate override for certains applications.
-    float calculateLayerScoreLocked(const LayerRequirement&, const RefreshRate&,
-                                    bool isSeamlessSwitch) const REQUIRES(mLock);
-
     // The list of refresh rates, indexed by display config ID. This must not change after this
     // object is initialized.
     AllRefreshRatesMapType mRefreshRates;
@@ -395,6 +385,10 @@
     Policy mDisplayManagerPolicy GUARDED_BY(mLock);
     std::optional<Policy> mOverridePolicy GUARDED_BY(mLock);
 
+    // A mapping between a UID and a preferred refresh rate that this app would
+    // run at.
+    std::unordered_map<uid_t, Fps> mPreferredRefreshRateForUid GUARDED_BY(mLock);
+
     // The min and max refresh rates supported by the device.
     // This will not change at runtime.
     const RefreshRate* mMinSupportedRefreshRate;