Remove frame rate flexibility token

Remove the frame rate flexiblity token which can be replaced with

DisplayManager.setRefreshRateSwitchingType(
      DisplayManager.SWITCHING_TYPE_ACROSS_AND_WITHIN_GROUPS);
DisplayManager.setShouldAlwaysRespectAppRequestedMode(true);

Bug: 175371491
Test: m
Change-Id: Ifde95dcdb936e39f894a0ca225ec49f39ca04e62

core/api/test-current.txt

@@ -2811,11 +2811,9 @@ package android.view {
 
   public final class SurfaceControl implements android.os.Parcelable {
     ctor public SurfaceControl(@NonNull android.view.SurfaceControl, @NonNull String);
-    method public static long acquireFrameRateFlexibilityToken();
     method @NonNull public static android.os.IBinder getInternalDisplayToken();
     method public boolean isSameSurface(@NonNull android.view.SurfaceControl);
     method public static void overrideHdrTypes(@NonNull android.os.IBinder, @NonNull int[]);
-    method public static void releaseFrameRateFlexibilityToken(long);
   }
 
   public class SurfaceControlViewHost {

core/java/android/view/SurfaceControl.java

@@ -230,8 +230,6 @@ public final class SurfaceControl implements Parcelable {
             float frameRate, int compatibility, int changeFrameRateStrategy);
     private static native long nativeGetHandle(long nativeObject);
 
-    private static native long nativeAcquireFrameRateFlexibilityToken();
-    private static native void nativeReleaseFrameRateFlexibilityToken(long token);
     private static native void nativeSetFixedTransformHint(long transactionObj, long nativeObject,
             int transformHint);
     private static native void nativeSetFocusedWindow(long transactionObj, IBinder toToken,
@@ -3708,27 +3706,6 @@ public final class SurfaceControl implements Parcelable {
         }
     }
 
-    /**
-     * Acquire a frame rate flexibility token, which allows surface flinger to freely switch display
-     * frame rates. This is used by CTS tests to put the device in a consistent state. See
-     * ISurfaceComposer::acquireFrameRateFlexibilityToken(). The caller must have the
-     * ACCESS_SURFACE_FLINGER permission, or else the call will fail, returning 0.
-     * @hide
-     */
-    @TestApi
-    public static long acquireFrameRateFlexibilityToken() {
-        return nativeAcquireFrameRateFlexibilityToken();
-    }
-
-    /**
-     * Release a frame rate flexibility token.
-     * @hide
-     */
-    @TestApi
-    public static void releaseFrameRateFlexibilityToken(long token) {
-        nativeReleaseFrameRateFlexibilityToken(token);
-    }
-
     /**
      * This is a refactoring utility function to enable lower levels of code to be refactored
      * from using the global transaction (and instead use a passed in Transaction) without

core/jni/android_view_SurfaceControl.cpp

@@ -888,23 +888,6 @@ static void nativeSetFrameRate(JNIEnv* env, jclass clazz, jlong transactionObj,
                               static_cast<int8_t>(changeFrameRateStrategy));
 }
 
-static jlong nativeAcquireFrameRateFlexibilityToken(JNIEnv* env, jclass clazz) {
-    sp<ISurfaceComposer> composer = ComposerService::getComposerService();
-    sp<IBinder> token;
-    status_t result = composer->acquireFrameRateFlexibilityToken(&token);
-    if (result < 0) {
-        ALOGE("Failed acquiring frame rate flexibility token: %s (%d)", strerror(-result), result);
-        return 0;
-    }
-    token->incStrong((void*)nativeAcquireFrameRateFlexibilityToken);
-    return reinterpret_cast<jlong>(token.get());
-}
-
-static void nativeReleaseFrameRateFlexibilityToken(JNIEnv* env, jclass clazz, jlong tokenLong) {
-    sp<IBinder> token(reinterpret_cast<IBinder*>(tokenLong));
-    token->decStrong((void*)nativeAcquireFrameRateFlexibilityToken);
-}
-
 static void nativeSetFixedTransformHint(JNIEnv* env, jclass clazz, jlong transactionObj,
                                         jlong nativeObject, jint transformHint) {
     auto transaction = reinterpret_cast<SurfaceComposerClient::Transaction*>(transactionObj);
@@ -1956,10 +1939,6 @@ static const JNINativeMethod sSurfaceControlMethods[] = {
             (void*)nativeSetShadowRadius },
     {"nativeSetFrameRate", "(JJFII)V",
             (void*)nativeSetFrameRate },
-    {"nativeAcquireFrameRateFlexibilityToken", "()J",
-            (void*)nativeAcquireFrameRateFlexibilityToken },
-    {"nativeReleaseFrameRateFlexibilityToken", "(J)V",
-            (void*)nativeReleaseFrameRateFlexibilityToken },
     {"nativeGetPhysicalDisplayIds", "()[J",
             (void*)nativeGetPhysicalDisplayIds },
     {"nativeGetPrimaryPhysicalDisplayId", "()J",