diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardClockSwitchController.java b/packages/SystemUI/src/com/android/keyguard/KeyguardClockSwitchController.java
index 47e4b49e519de516735ce3c76e7f2bab71066656..f688d4f17841a90cb3a85a400aa8abc34ffb304b 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardClockSwitchController.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardClockSwitchController.java
@@ -308,14 +308,14 @@ public class KeyguardClockSwitchController extends ViewController<KeyguardClockS
         mStatusArea = mView.findViewById(R.id.keyguard_status_area);
 
         mBgExecutor.execute(() -> {
-            mSecureSettings.registerContentObserverForUser(
+            mSecureSettings.registerContentObserverForUserSync(
                     Settings.Secure.LOCKSCREEN_USE_DOUBLE_LINE_CLOCK,
                     false, /* notifyForDescendants */
                     mDoubleLineClockObserver,
                     UserHandle.USER_ALL
             );
 
-            mSecureSettings.registerContentObserverForUser(
+            mSecureSettings.registerContentObserverForUserSync(
                     Settings.Secure.LOCK_SCREEN_WEATHER_ENABLED,
                     false, /* notifyForDescendants */
                     mShowWeatherObserver,
@@ -372,8 +372,8 @@ public class KeyguardClockSwitchController extends ViewController<KeyguardClockS
         setClock(null);
 
         mBgExecutor.execute(() -> {
-            mSecureSettings.unregisterContentObserver(mDoubleLineClockObserver);
-            mSecureSettings.unregisterContentObserver(mShowWeatherObserver);
+            mSecureSettings.unregisterContentObserverSync(mDoubleLineClockObserver);
+            mSecureSettings.unregisterContentObserverSync(mShowWeatherObserver);
         });
 
         mKeyguardUnlockAnimationController.removeKeyguardUnlockAnimationListener(
diff --git a/packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationSettings.java b/packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationSettings.java
index ca24ccb3e6ec0eb1b97c57923703ae88e73da9cd..f2a68a8d9fd7bde2e0f63021e22bca859f819ad8 100644
--- a/packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationSettings.java
+++ b/packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationSettings.java
@@ -319,7 +319,7 @@ class WindowMagnificationSettings implements MagnificationGestureDetector.OnGest
         }
 
         // Unregister observer before removing view
-        mSecureSettings.unregisterContentObserver(mMagnificationCapabilityObserver);
+        mSecureSettings.unregisterContentObserverSync(mMagnificationCapabilityObserver);
         mWindowManager.removeView(mSettingView);
         mIsVisible = false;
         if (resetPosition) {
@@ -380,7 +380,7 @@ class WindowMagnificationSettings implements MagnificationGestureDetector.OnGest
 
             mWindowManager.addView(mSettingView, mParams);
 
-            mSecureSettings.registerContentObserverForUser(
+            mSecureSettings.registerContentObserverForUserSync(
                     Settings.Secure.ACCESSIBILITY_MAGNIFICATION_CAPABILITY,
                     mMagnificationCapabilityObserver,
                     UserHandle.USER_CURRENT);
diff --git a/packages/SystemUI/src/com/android/systemui/accessibility/floatingmenu/MenuInfoRepository.java b/packages/SystemUI/src/com/android/systemui/accessibility/floatingmenu/MenuInfoRepository.java
index eb840f1f4c901ed418dbbe7d58405a6285211c5b..ffb5f3d47bcc0611fd56383eb1288aab74b355da 100644
--- a/packages/SystemUI/src/com/android/systemui/accessibility/floatingmenu/MenuInfoRepository.java
+++ b/packages/SystemUI/src/com/android/systemui/accessibility/floatingmenu/MenuInfoRepository.java
@@ -240,26 +240,26 @@ class MenuInfoRepository {
     }
 
     void registerObserversAndCallbacks() {
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 mSecureSettings.getUriFor(Settings.Secure.ACCESSIBILITY_BUTTON_TARGETS),
                 /* notifyForDescendants */ false, mMenuTargetFeaturesContentObserver,
                 UserHandle.USER_CURRENT);
         if (!com.android.systemui.Flags.floatingMenuNarrowTargetContentObserver()) {
-            mSecureSettings.registerContentObserverForUser(
+            mSecureSettings.registerContentObserverForUserSync(
                     mSecureSettings.getUriFor(ENABLED_ACCESSIBILITY_SERVICES),
                     /* notifyForDescendants */ false,
                     mMenuTargetFeaturesContentObserver,
                     UserHandle.USER_CURRENT);
         }
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 mSecureSettings.getUriFor(Settings.Secure.ACCESSIBILITY_FLOATING_MENU_SIZE),
                 /* notifyForDescendants */ false, mMenuSizeContentObserver,
                 UserHandle.USER_CURRENT);
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 mSecureSettings.getUriFor(ACCESSIBILITY_FLOATING_MENU_FADE_ENABLED),
                 /* notifyForDescendants */ false, mMenuFadeOutContentObserver,
                 UserHandle.USER_CURRENT);
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 mSecureSettings.getUriFor(ACCESSIBILITY_FLOATING_MENU_OPACITY),
                 /* notifyForDescendants */ false, mMenuFadeOutContentObserver,
                 UserHandle.USER_CURRENT);
diff --git a/packages/SystemUI/src/com/android/systemui/accessibility/fontscaling/FontScalingDialogDelegate.kt b/packages/SystemUI/src/com/android/systemui/accessibility/fontscaling/FontScalingDialogDelegate.kt
index 91bc0c14477370c39e58f8de8963d5d860f668d0..eaf541d7b5592c2291e391096fc9e4099c714079 100644
--- a/packages/SystemUI/src/com/android/systemui/accessibility/fontscaling/FontScalingDialogDelegate.kt
+++ b/packages/SystemUI/src/com/android/systemui/accessibility/fontscaling/FontScalingDialogDelegate.kt
@@ -29,12 +29,12 @@ import android.widget.SeekBar
 import android.widget.TextView
 import androidx.annotation.MainThread
 import androidx.annotation.WorkerThread
-import com.android.systemui.res.R
 import com.android.systemui.common.ui.view.SeekBarWithIconButtonsView
 import com.android.systemui.common.ui.view.SeekBarWithIconButtonsView.OnSeekBarWithIconButtonsChangeListener
 import com.android.systemui.common.ui.view.SeekBarWithIconButtonsView.OnSeekBarWithIconButtonsChangeListener.ControlUnitType
 import com.android.systemui.dagger.qualifiers.Background
 import com.android.systemui.dagger.qualifiers.Main
+import com.android.systemui.res.R
 import com.android.systemui.settings.UserTracker
 import com.android.systemui.statusbar.phone.SystemUIDialog
 import com.android.systemui.util.concurrency.DelayableExecutor
@@ -46,7 +46,9 @@ import javax.inject.Inject
 import kotlin.math.roundToInt
 
 /** The Dialog that contains a seekbar for changing the font size. */
-class FontScalingDialogDelegate @Inject constructor(
+class FontScalingDialogDelegate
+@Inject
+constructor(
     private val context: Context,
     private val systemUIDialogFactory: SystemUIDialog.Factory,
     private val layoutInflater: LayoutInflater,
@@ -84,9 +86,9 @@ class FontScalingDialogDelegate @Inject constructor(
         dialog.setTitle(R.string.font_scaling_dialog_title)
         dialog.setView(layoutInflater.inflate(R.layout.font_scaling_dialog, null))
         dialog.setPositiveButton(
-                R.string.quick_settings_done,
-                /* onClick = */ null,
-                /* dismissOnClick = */ true
+            R.string.quick_settings_done,
+            /* onClick = */ null,
+            /* dismissOnClick = */ true
         )
     }
 
@@ -142,7 +144,7 @@ class FontScalingDialogDelegate @Inject constructor(
             }
         )
         doneButton.setOnClickListener { dialog.dismiss() }
-        systemSettings.registerContentObserver(Settings.System.FONT_SCALE, fontSizeObserver)
+        systemSettings.registerContentObserverSync(Settings.System.FONT_SCALE, fontSizeObserver)
     }
 
     /**
@@ -165,7 +167,7 @@ class FontScalingDialogDelegate @Inject constructor(
     override fun onStop(dialog: SystemUIDialog) {
         cancelUpdateFontScaleRunnable?.run()
         cancelUpdateFontScaleRunnable = null
-        systemSettings.unregisterContentObserver(fontSizeObserver)
+        systemSettings.unregisterContentObserverSync(fontSizeObserver)
     }
 
     @MainThread
diff --git a/packages/SystemUI/src/com/android/systemui/biometrics/data/repository/FaceUserSettingsRepository.kt b/packages/SystemUI/src/com/android/systemui/biometrics/data/repository/FaceUserSettingsRepository.kt
index 68c4a10fcfad6f771fbf7b4d4b0bf3abc8105929..2970890c3fa73cfc99af0ee75020e70facef916f 100644
--- a/packages/SystemUI/src/com/android/systemui/biometrics/data/repository/FaceUserSettingsRepository.kt
+++ b/packages/SystemUI/src/com/android/systemui/biometrics/data/repository/FaceUserSettingsRepository.kt
@@ -75,7 +75,7 @@ private fun SecureSettings.watch(
 ) {
     fun fetch(): Boolean = getIntForUser(key, if (defaultValue) 1 else 0, userId) > 0
 
-    registerContentObserverForUser(
+    registerContentObserverForUserSync(
         key,
         false /* notifyForDescendants */,
         object : ContentObserver(handler) {
diff --git a/packages/SystemUI/src/com/android/systemui/complication/ComplicationTypesUpdater.java b/packages/SystemUI/src/com/android/systemui/complication/ComplicationTypesUpdater.java
index 0bdc7f1dfb96704a1b9a82b9ba04d0f50b23f3a1..84807fbc8ece2e80fd2cc23e6c510245ee84fd89 100644
--- a/packages/SystemUI/src/com/android/systemui/complication/ComplicationTypesUpdater.java
+++ b/packages/SystemUI/src/com/android/systemui/complication/ComplicationTypesUpdater.java
@@ -69,15 +69,15 @@ public class ComplicationTypesUpdater extends ConditionalCoreStartable {
             }
         };
 
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 Settings.Secure.SCREENSAVER_COMPLICATIONS_ENABLED,
                 settingsObserver,
                 UserHandle.myUserId());
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 Settings.Secure.SCREENSAVER_HOME_CONTROLS_ENABLED,
                 settingsObserver,
                 UserHandle.myUserId());
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 Settings.Secure.LOCKSCREEN_SHOW_CONTROLS,
                 settingsObserver,
                 UserHandle.myUserId());
diff --git a/packages/SystemUI/src/com/android/systemui/doze/DozeSensors.java b/packages/SystemUI/src/com/android/systemui/doze/DozeSensors.java
index 3194942527867b5e2c39537dc1d85d78d7a21f51..7ae840938fe78d6485ddc3b1e1ca903eff54cc3c 100644
--- a/packages/SystemUI/src/com/android/systemui/doze/DozeSensors.java
+++ b/packages/SystemUI/src/com/android/systemui/doze/DozeSensors.java
@@ -426,7 +426,7 @@ public class DozeSensors {
         }
 
         if (!anyListening) {
-            mSecureSettings.unregisterContentObserver(mSettingsObserver);
+            mSecureSettings.unregisterContentObserverSync(mSettingsObserver);
         } else if (!mSettingRegistered) {
             for (TriggerSensor s : mTriggerSensors) {
                 s.registerSettingsObserver(mSettingsObserver);
@@ -750,7 +750,7 @@ public class DozeSensors {
 
         public void registerSettingsObserver(ContentObserver settingsObserver) {
             if (mConfigured && !TextUtils.isEmpty(mSetting)) {
-                mSecureSettings.registerContentObserverForUser(
+                mSecureSettings.registerContentObserverForUserSync(
                         mSetting, mSettingsObserver, UserHandle.USER_ALL);
             }
         }
diff --git a/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialogLite.java b/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialogLite.java
index 49be03cb08adea8cea170d82407fe9652eb81fc9..1e4fb4f1506292cca22357e9d475841f8113ca79 100644
--- a/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialogLite.java
+++ b/packages/SystemUI/src/com/android/systemui/globalactions/GlobalActionsDialogLite.java
@@ -428,7 +428,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
 
         // get notified of phone state changes
         mTelephonyListenerManager.addServiceStateListener(mPhoneStateListener);
-        mGlobalSettings.registerContentObserver(
+        mGlobalSettings.registerContentObserverSync(
                 Settings.Global.getUriFor(Settings.Global.AIRPLANE_MODE_ON), true,
                 mAirplaneModeObserver);
         mHasVibrator = vibrator.hasVibrator();
@@ -453,7 +453,7 @@ public class GlobalActionsDialogLite implements DialogInterface.OnDismissListene
     public void destroy() {
         mBroadcastDispatcher.unregisterReceiver(mBroadcastReceiver);
         mTelephonyListenerManager.removeServiceStateListener(mPhoneStateListener);
-        mGlobalSettings.unregisterContentObserver(mAirplaneModeObserver);
+        mGlobalSettings.unregisterContentObserverSync(mAirplaneModeObserver);
         mConfigurationController.removeCallback(this);
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaCarouselController.kt b/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaCarouselController.kt
index 7bacdeb998087aa6c2abf29e71d111c1e0d4d700..edead51dd8e07a5fce219d34a1aee0a2892879a5 100644
--- a/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaCarouselController.kt
+++ b/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaCarouselController.kt
@@ -397,7 +397,7 @@ constructor(
         listenForLockscreenSettingChanges(applicationScope)
 
         // Notifies all active players about animation scale changes.
-        globalSettings.registerContentObserver(
+        globalSettings.registerContentObserverSync(
             Settings.Global.getUriFor(Settings.Global.ANIMATOR_DURATION_SCALE),
             animationScaleObserver
         )
diff --git a/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaHierarchyManager.kt b/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaHierarchyManager.kt
index 6589038d7096d41a5be9d3b0b5810be85b4718ae..601d563ffc458060ed0a32b516a03c381c6faf75 100644
--- a/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaHierarchyManager.kt
+++ b/packages/SystemUI/src/com/android/systemui/media/controls/ui/controller/MediaHierarchyManager.kt
@@ -167,6 +167,7 @@ constructor(
     private var targetBounds: Rect = Rect()
     private val mediaFrame
         get() = mediaCarouselController.mediaFrame
+
     private var statusbarState: Int = statusBarStateController.state
     private var animator =
         ValueAnimator.ofFloat(0.0f, 1.0f).apply {
@@ -600,7 +601,7 @@ constructor(
                     }
                 }
             }
-        secureSettings.registerContentObserverForUser(
+        secureSettings.registerContentObserverForUserSync(
             Settings.Secure.MEDIA_CONTROLS_LOCK_SCREEN,
             settingsObserver,
             UserHandle.USER_ALL
diff --git a/packages/SystemUI/src/com/android/systemui/qrcodescanner/controller/QRCodeScannerController.java b/packages/SystemUI/src/com/android/systemui/qrcodescanner/controller/QRCodeScannerController.java
index 2d460a0d28fbe2d27af287bfb59035d62796c758..765b45bdbf2e032ccde01ec603f5731bba7734dc 100644
--- a/packages/SystemUI/src/com/android/systemui/qrcodescanner/controller/QRCodeScannerController.java
+++ b/packages/SystemUI/src/com/android/systemui/qrcodescanner/controller/QRCodeScannerController.java
@@ -341,7 +341,7 @@ public class QRCodeScannerController implements
         }
 
         mQRCodeScannerPreferenceObserver.forEach((key, value) -> {
-            mSecureSettings.unregisterContentObserver(value);
+            mSecureSettings.unregisterContentObserverSync(value);
         });
 
         // Reset cached values to default as we are no longer listening
@@ -418,7 +418,7 @@ public class QRCodeScannerController implements
                 });
             }
         });
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 mSecureSettings.getUriFor(LOCK_SCREEN_SHOW_QR_CODE_SCANNER), false,
                 mQRCodeScannerPreferenceObserver.get(userId), userId);
     }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/AutoAddTracker.kt b/packages/SystemUI/src/com/android/systemui/qs/AutoAddTracker.kt
index 2fafba1f188a76a6af3485f473ff65907136f19a..e4bafcd9fdb3bc4aafc5d38e740a3c4abd9b5924 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/AutoAddTracker.kt
+++ b/packages/SystemUI/src/com/android/systemui/qs/AutoAddTracker.kt
@@ -52,7 +52,9 @@ private const val DELIMITER = ","
  *
  * It also handles restore gracefully.
  */
-class AutoAddTracker @VisibleForTesting constructor(
+class AutoAddTracker
+@VisibleForTesting
+constructor(
     private val secureSettings: SecureSettings,
     private val broadcastDispatcher: BroadcastDispatcher,
     private val qsHost: QSHost,
@@ -66,39 +68,43 @@ class AutoAddTracker @VisibleForTesting constructor(
         private val FILTER = IntentFilter(Intent.ACTION_SETTING_RESTORED)
     }
 
-    @GuardedBy("autoAdded")
-    private val autoAdded = ArraySet<String>()
+    @GuardedBy("autoAdded") private val autoAdded = ArraySet<String>()
     private var restoredTiles: Map<String, AutoTile>? = null
 
     override val currentUserId: Int
         get() = userId
 
-    private val contentObserver = object : ContentObserver(mainHandler) {
-        override fun onChange(
-            selfChange: Boolean,
-            uris: Collection<Uri>,
-            flags: Int,
-            _userId: Int
-        ) {
-            if (_userId != userId) {
-                // Ignore changes outside of our user. We'll load the correct value on user change
-                return
+    private val contentObserver =
+        object : ContentObserver(mainHandler) {
+            override fun onChange(
+                selfChange: Boolean,
+                uris: Collection<Uri>,
+                flags: Int,
+                _userId: Int
+            ) {
+                if (_userId != userId) {
+                    // Ignore changes outside of our user. We'll load the correct value on user
+                    // change
+                    return
+                }
+                loadTiles()
             }
-            loadTiles()
         }
-    }
 
-    private val restoreReceiver = object : BroadcastReceiver() {
-        override fun onReceive(context: Context, intent: Intent) {
-            if (intent.action != Intent.ACTION_SETTING_RESTORED) return
-            processRestoreIntent(intent)
+    private val restoreReceiver =
+        object : BroadcastReceiver() {
+            override fun onReceive(context: Context, intent: Intent) {
+                if (intent.action != Intent.ACTION_SETTING_RESTORED) return
+                processRestoreIntent(intent)
+            }
         }
-    }
 
     private fun processRestoreIntent(intent: Intent) {
         when (intent.getStringExtra(Intent.EXTRA_SETTING_NAME)) {
             Settings.Secure.QS_TILES -> {
-                restoredTiles = intent.getStringExtra(Intent.EXTRA_SETTING_NEW_VALUE)
+                restoredTiles =
+                    intent
+                        .getStringExtra(Intent.EXTRA_SETTING_NEW_VALUE)
                         ?.split(DELIMITER)
                         ?.mapIndexed(::AutoTile)
                         ?.associateBy(AutoTile::tileType)
@@ -109,13 +115,11 @@ class AutoAddTracker @VisibleForTesting constructor(
             }
             Settings.Secure.QS_AUTO_ADDED_TILES -> {
                 restoredTiles?.let { restoredTiles ->
-                    val restoredAutoAdded = intent
-                            .getStringExtra(Intent.EXTRA_SETTING_NEW_VALUE)
-                            ?.split(DELIMITER)
+                    val restoredAutoAdded =
+                        intent.getStringExtra(Intent.EXTRA_SETTING_NEW_VALUE)?.split(DELIMITER)
                             ?: emptyList()
-                    val autoAddedBeforeRestore = intent
-                            .getStringExtra(Intent.EXTRA_SETTING_PREVIOUS_VALUE)
-                            ?.split(DELIMITER)
+                    val autoAddedBeforeRestore =
+                        intent.getStringExtra(Intent.EXTRA_SETTING_PREVIOUS_VALUE)?.split(DELIMITER)
                             ?: emptyList()
 
                     val tilesToRemove = restoredAutoAdded.filter { it !in restoredTiles }
@@ -123,50 +127,51 @@ class AutoAddTracker @VisibleForTesting constructor(
                         Log.d(TAG, "Removing tiles: $tilesToRemove")
                         qsHost.removeTiles(tilesToRemove)
                     }
-                    val tiles = synchronized(autoAdded) {
-                        autoAdded.clear()
-                        autoAdded.addAll(restoredAutoAdded + autoAddedBeforeRestore)
-                        getTilesFromListLocked()
-                    }
+                    val tiles =
+                        synchronized(autoAdded) {
+                            autoAdded.clear()
+                            autoAdded.addAll(restoredAutoAdded + autoAddedBeforeRestore)
+                            getTilesFromListLocked()
+                        }
                     saveTiles(tiles)
-                } ?: run {
-                    Log.w(TAG, "${Settings.Secure.QS_AUTO_ADDED_TILES} restored before " +
-                            "${Settings.Secure.QS_TILES} for user $userId")
                 }
+                    ?: run {
+                        Log.w(
+                            TAG,
+                            "${Settings.Secure.QS_AUTO_ADDED_TILES} restored before " +
+                                "${Settings.Secure.QS_TILES} for user $userId"
+                        )
+                    }
             }
             else -> {} // Do nothing for other Settings
         }
     }
 
-    /**
-     * Init method must be called after construction to start listening
-     */
+    /** Init method must be called after construction to start listening */
     fun initialize() {
         dumpManager.registerDumpable(TAG, this)
         loadTiles()
-        secureSettings.registerContentObserverForUser(
-                secureSettings.getUriFor(Settings.Secure.QS_AUTO_ADDED_TILES),
-                contentObserver,
-                UserHandle.USER_ALL
+        secureSettings.registerContentObserverForUserSync(
+            secureSettings.getUriFor(Settings.Secure.QS_AUTO_ADDED_TILES),
+            contentObserver,
+            UserHandle.USER_ALL
         )
         registerBroadcastReceiver()
     }
 
-    /**
-     * Unregister listeners, receivers and observers
-     */
+    /** Unregister listeners, receivers and observers */
     fun destroy() {
         dumpManager.unregisterDumpable(TAG)
-        secureSettings.unregisterContentObserver(contentObserver)
+        secureSettings.unregisterContentObserverSync(contentObserver)
         unregisterBroadcastReceiver()
     }
 
     private fun registerBroadcastReceiver() {
         broadcastDispatcher.registerReceiver(
-                restoreReceiver,
-                FILTER,
-                backgroundExecutor,
-                UserHandle.of(userId)
+            restoreReceiver,
+            FILTER,
+            backgroundExecutor,
+            UserHandle.of(userId)
         )
     }
 
@@ -186,13 +191,9 @@ class AutoAddTracker @VisibleForTesting constructor(
     fun getRestoredTilePosition(tile: String): Int =
         restoredTiles?.get(tile)?.index ?: QSHost.POSITION_AT_END
 
-    /**
-     * Returns `true` if the tile has been auto-added before
-     */
+    /** Returns `true` if the tile has been auto-added before */
     fun isAdded(tile: String): Boolean {
-        return synchronized(autoAdded) {
-            tile in autoAdded
-        }
+        return synchronized(autoAdded) { tile in autoAdded }
     }
 
     /**
@@ -201,13 +202,14 @@ class AutoAddTracker @VisibleForTesting constructor(
      * From here on, [isAdded] will return true for that tile.
      */
     fun setTileAdded(tile: String) {
-        val tiles = synchronized(autoAdded) {
-            if (autoAdded.add(tile)) {
-                getTilesFromListLocked()
-            } else {
-                null
+        val tiles =
+            synchronized(autoAdded) {
+                if (autoAdded.add(tile)) {
+                    getTilesFromListLocked()
+                } else {
+                    null
+                }
             }
-        }
         tiles?.let { saveTiles(it) }
     }
 
@@ -217,13 +219,14 @@ class AutoAddTracker @VisibleForTesting constructor(
      * This allows for this tile to be auto-added again in the future.
      */
     fun setTileRemoved(tile: String) {
-        val tiles = synchronized(autoAdded) {
-            if (autoAdded.remove(tile)) {
-                getTilesFromListLocked()
-            } else {
-                null
+        val tiles =
+            synchronized(autoAdded) {
+                if (autoAdded.remove(tile)) {
+                    getTilesFromListLocked()
+                } else {
+                    null
+                }
             }
-        }
         tiles?.let { saveTiles(it) }
     }
 
@@ -233,12 +236,12 @@ class AutoAddTracker @VisibleForTesting constructor(
 
     private fun saveTiles(tiles: String) {
         secureSettings.putStringForUser(
-                Settings.Secure.QS_AUTO_ADDED_TILES,
-                tiles,
-                /* tag */ null,
-                /* makeDefault */ false,
-                userId,
-                /* overrideableByRestore */ true
+            Settings.Secure.QS_AUTO_ADDED_TILES,
+            tiles,
+            /* tag */ null,
+            /* makeDefault */ false,
+            userId,
+            /* overrideableByRestore */ true
         )
     }
 
@@ -261,7 +264,9 @@ class AutoAddTracker @VisibleForTesting constructor(
     }
 
     @SysUISingleton
-    class Builder @Inject constructor(
+    class Builder
+    @Inject
+    constructor(
         private val secureSettings: SecureSettings,
         private val broadcastDispatcher: BroadcastDispatcher,
         private val qsHost: QSHost,
@@ -278,16 +283,16 @@ class AutoAddTracker @VisibleForTesting constructor(
 
         fun build(): AutoAddTracker {
             return AutoAddTracker(
-                    secureSettings,
-                    broadcastDispatcher,
-                    qsHost,
-                    dumpManager,
-                    handler,
-                    executor,
-                    userId
+                secureSettings,
+                broadcastDispatcher,
+                qsHost,
+                dumpManager,
+                handler,
+                executor,
+                userId
             )
         }
     }
 
     private data class AutoTile(val index: Int, val tileType: String)
-}
\ No newline at end of file
+}
diff --git a/packages/SystemUI/src/com/android/systemui/qs/ReduceBrightColorsControllerImpl.java b/packages/SystemUI/src/com/android/systemui/qs/ReduceBrightColorsControllerImpl.java
index 4fc660948926bb5bdcffae83ba1da6b5c2751cf0..846d63f10875be59fb35f074d964ee62fda1ee60 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/ReduceBrightColorsControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/ReduceBrightColorsControllerImpl.java
@@ -77,8 +77,8 @@ public class ReduceBrightColorsControllerImpl implements
             public void onUserChanged(int newUser, Context userContext) {
                 synchronized (mListeners) {
                     if (mListeners.size() > 0) {
-                        mSecureSettings.unregisterContentObserver(mContentObserver);
-                        mSecureSettings.registerContentObserverForUser(
+                        mSecureSettings.unregisterContentObserverSync(mContentObserver);
+                        mSecureSettings.registerContentObserverForUserSync(
                                 Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED,
                                 false, mContentObserver, newUser);
                     }
@@ -94,7 +94,7 @@ public class ReduceBrightColorsControllerImpl implements
             if (!mListeners.contains(listener)) {
                 mListeners.add(listener);
                 if (mListeners.size() == 1) {
-                    mSecureSettings.registerContentObserverForUser(
+                    mSecureSettings.registerContentObserverForUserSync(
                             Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED,
                             false, mContentObserver, mUserTracker.getUserId());
                 }
@@ -106,7 +106,7 @@ public class ReduceBrightColorsControllerImpl implements
     public void removeCallback(@androidx.annotation.NonNull Listener listener) {
         synchronized (mListeners) {
             if (mListeners.remove(listener) && mListeners.size() == 0) {
-                mSecureSettings.unregisterContentObserver(mContentObserver);
+                mSecureSettings.unregisterContentObserverSync(mContentObserver);
             }
         }
     }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/SettingObserver.java b/packages/SystemUI/src/com/android/systemui/qs/SettingObserver.java
index eb11568614b7e21c5074c65f287ee256a556b1ad..6092348b964e8ba69f774f7d48e8e62e9eb3e428 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/SettingObserver.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/SettingObserver.java
@@ -74,10 +74,10 @@ public abstract class SettingObserver extends ContentObserver implements Listena
         mListening = listening;
         if (listening) {
             mObservedValue = getValueFromProvider();
-            mSettingsProxy.registerContentObserver(
+            mSettingsProxy.registerContentObserverSync(
                     mSettingsProxy.getUriFor(mSettingName), false, this);
         } else {
-            mSettingsProxy.unregisterContentObserver(this);
+            mSettingsProxy.unregisterContentObserverSync(this);
             mObservedValue = mDefaultValue;
         }
     }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/UserSettingObserver.java b/packages/SystemUI/src/com/android/systemui/qs/UserSettingObserver.java
index 539c2d6e64da65be8f56cf26d95ad687e41e5eaa..1b34c33c9ca0593b02faa8ce53239c8862109088 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/UserSettingObserver.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/UserSettingObserver.java
@@ -76,10 +76,10 @@ public abstract class UserSettingObserver extends ContentObserver implements Lis
         mListening = listening;
         if (listening) {
             mObservedValue = getValueFromProvider();
-            mSettingsProxy.registerContentObserverForUser(
+            mSettingsProxy.registerContentObserverForUserSync(
                     mSettingsProxy.getUriFor(mSettingName), false, this, mUserId);
         } else {
-            mSettingsProxy.unregisterContentObserver(this);
+            mSettingsProxy.unregisterContentObserverSync(this);
             mObservedValue = mDefaultValue;
         }
     }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/pipeline/data/repository/UserAutoAddRepository.kt b/packages/SystemUI/src/com/android/systemui/qs/pipeline/data/repository/UserAutoAddRepository.kt
index d452241e86e212c72a6670ebf2e04c146d62f9bc..9fcb0db0c88d076beac05634197f1c3d46010611 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/pipeline/data/repository/UserAutoAddRepository.kt
+++ b/packages/SystemUI/src/com/android/systemui/qs/pipeline/data/repository/UserAutoAddRepository.kt
@@ -44,9 +44,8 @@ constructor(
     @Background private val bgDispatcher: CoroutineDispatcher,
 ) {
 
-    private val changeEvents = MutableSharedFlow<ChangeAction>(
-        extraBufferCapacity = CHANGES_BUFFER_SIZE
-    )
+    private val changeEvents =
+        MutableSharedFlow<ChangeAction>(extraBufferCapacity = CHANGES_BUFFER_SIZE)
 
     private lateinit var _autoAdded: StateFlow<Set<TileSpec>>
 
@@ -85,8 +84,8 @@ constructor(
                                     trySend(Unit)
                                 }
                             }
-                        secureSettings.registerContentObserverForUser(SETTING, observer, userId)
-                        awaitClose { secureSettings.unregisterContentObserver(observer) }
+                        secureSettings.registerContentObserverForUserSync(SETTING, observer, userId)
+                        awaitClose { secureSettings.unregisterContentObserverSync(observer) }
                     }
                     .map { load() }
                     .flowOn(bgDispatcher)
diff --git a/packages/SystemUI/src/com/android/systemui/qs/pipeline/data/repository/UserTileSpecRepository.kt b/packages/SystemUI/src/com/android/systemui/qs/pipeline/data/repository/UserTileSpecRepository.kt
index aca8733bff7bc0646d4933ebed9d031cc32c8de2..1f9570a5722e3bfdeb2e8b17567cbec37520cb5b 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/pipeline/data/repository/UserTileSpecRepository.kt
+++ b/packages/SystemUI/src/com/android/systemui/qs/pipeline/data/repository/UserTileSpecRepository.kt
@@ -98,8 +98,8 @@ constructor(
                                     trySend(Unit)
                                 }
                             }
-                        secureSettings.registerContentObserverForUser(SETTING, observer, userId)
-                        awaitClose { secureSettings.unregisterContentObserver(observer) }
+                        secureSettings.registerContentObserverForUserSync(SETTING, observer, userId)
+                        awaitClose { secureSettings.unregisterContentObserverSync(observer) }
                     }
                     .map { loadTilesFromSettings(userId) }
                     .flowOn(backgroundDispatcher)
diff --git a/packages/SystemUI/src/com/android/systemui/retail/data/repository/RetailModeRepository.kt b/packages/SystemUI/src/com/android/systemui/retail/data/repository/RetailModeRepository.kt
index 3c0aa384d98c43225b38523082f77cb95fb971d8..09fd7df15dc2aefe5f2297979421a0832bd9e242 100644
--- a/packages/SystemUI/src/com/android/systemui/retail/data/repository/RetailModeRepository.kt
+++ b/packages/SystemUI/src/com/android/systemui/retail/data/repository/RetailModeRepository.kt
@@ -66,9 +66,9 @@ constructor(
                         }
                     }
 
-                globalSettings.registerContentObserver(RETAIL_MODE_SETTING, observer)
+                globalSettings.registerContentObserverSync(RETAIL_MODE_SETTING, observer)
 
-                awaitClose { globalSettings.unregisterContentObserver(observer) }
+                awaitClose { globalSettings.unregisterContentObserverSync(observer) }
             }
             .onStart { emit(Unit) }
             .map { globalSettings.getInt(RETAIL_MODE_SETTING, 0) != 0 }
diff --git a/packages/SystemUI/src/com/android/systemui/settings/brightness/BrightnessController.java b/packages/SystemUI/src/com/android/systemui/settings/brightness/BrightnessController.java
index 37f2a21b145ee15bda4cc62bd432042ded8787f5..498107624f9b7081dce18e8439f27d61e3c5f034 100644
--- a/packages/SystemUI/src/com/android/systemui/settings/brightness/BrightnessController.java
+++ b/packages/SystemUI/src/com/android/systemui/settings/brightness/BrightnessController.java
@@ -137,14 +137,14 @@ public class BrightnessController implements ToggleSlider.Listener, MirroredBrig
         public void startObserving() {
             if (!mObserving) {
                 mObserving = true;
-                mSecureSettings.registerContentObserverForUser(
+                mSecureSettings.registerContentObserverForUserSync(
                         BRIGHTNESS_MODE_URI,
                         false, this, UserHandle.USER_ALL);
             }
         }
 
         public void stopObserving() {
-            mSecureSettings.unregisterContentObserver(this);
+            mSecureSettings.unregisterContentObserverSync(this);
             mObserving = false;
         }
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/ImmersiveModeConfirmation.java b/packages/SystemUI/src/com/android/systemui/statusbar/ImmersiveModeConfirmation.java
index 95768e55de3405edcfedfa6148f261fc81f73f4d..2dfc920b4f20b04b8b56460e25841a6e0a8199b6 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/ImmersiveModeConfirmation.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/ImmersiveModeConfirmation.java
@@ -318,10 +318,10 @@ public class ImmersiveModeConfirmation implements CoreStartable, CommandQueue.Ca
             };
 
             // Register to listen for changes in Settings.Secure settings.
-            mSecureSettings.registerContentObserverForUser(
+            mSecureSettings.registerContentObserverForUserSync(
                     Settings.Secure.IMMERSIVE_MODE_CONFIRMATIONS, mContentObserver,
                     UserHandle.USER_CURRENT);
-            mSecureSettings.registerContentObserverForUser(
+            mSecureSettings.registerContentObserverForUserSync(
                     Settings.Secure.USER_SETUP_COMPLETE, mContentObserver,
                     UserHandle.USER_CURRENT);
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/inflation/NotifUiAdjustmentProvider.kt b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/inflation/NotifUiAdjustmentProvider.kt
index 4c2ef83227317f58f7e63914bd5c602e1626587d..4c82bc193c773814164eba50c98e73b14647b443 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/inflation/NotifUiAdjustmentProvider.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/inflation/NotifUiAdjustmentProvider.kt
@@ -37,11 +37,13 @@ import com.android.systemui.util.settings.SecureSettings
 import javax.inject.Inject
 
 /**
- * A class which provides an adjustment object to the preparation coordinator which is uses
- * to ensure that notifications are reinflated when ranking-derived information changes.
+ * A class which provides an adjustment object to the preparation coordinator which is uses to
+ * ensure that notifications are reinflated when ranking-derived information changes.
  */
 @SysUISingleton
-class NotifUiAdjustmentProvider @Inject constructor(
+class NotifUiAdjustmentProvider
+@Inject
+constructor(
     @Main private val handler: Handler,
     private val secureSettings: SecureSettings,
     private val lockscreenUserManager: NotificationLockscreenUserManager,
@@ -53,14 +55,13 @@ class NotifUiAdjustmentProvider @Inject constructor(
     private val dirtyListeners = ListenerSet<Runnable>()
     private var isSnoozeSettingsEnabled = false
 
-    /**
-     *  Update the snooze enabled value on user switch
-     */
-    private val userTrackerCallback = object : UserTracker.Callback {
-        override fun onUserChanged(newUser: Int, userContext: Context) {
-            updateSnoozeEnabled()
+    /** Update the snooze enabled value on user switch */
+    private val userTrackerCallback =
+        object : UserTracker.Callback {
+            override fun onUserChanged(newUser: Int, userContext: Context) {
+                updateSnoozeEnabled()
+            }
         }
-    }
 
     init {
         userTracker.addCallback(userTrackerCallback, HandlerExecutor(handler))
@@ -75,7 +76,7 @@ class NotifUiAdjustmentProvider @Inject constructor(
                 )
             }
             updateSnoozeEnabled()
-            secureSettings.registerContentObserverForUser(
+            secureSettings.registerContentObserverForUserSync(
                 SHOW_NOTIFICATION_SNOOZE,
                 settingsObserver,
                 UserHandle.USER_ALL
@@ -93,7 +94,7 @@ class NotifUiAdjustmentProvider @Inject constructor(
                     onSensitiveStateChangedListener
                 )
             }
-            secureSettings.unregisterContentObserver(settingsObserver)
+            secureSettings.unregisterContentObserverSync(settingsObserver)
         }
     }
 
@@ -104,12 +105,13 @@ class NotifUiAdjustmentProvider @Inject constructor(
 
     private val onSensitiveStateChangedListener = Runnable { dirtyListeners.forEach(Runnable::run) }
 
-    private val settingsObserver = object : ContentObserver(handler) {
-        override fun onChange(selfChange: Boolean) {
-            updateSnoozeEnabled()
-            dirtyListeners.forEach(Runnable::run)
+    private val settingsObserver =
+        object : ContentObserver(handler) {
+            override fun onChange(selfChange: Boolean) {
+                updateSnoozeEnabled()
+                dirtyListeners.forEach(Runnable::run)
+            }
         }
-    }
 
     private fun updateSnoozeEnabled() {
         isSnoozeSettingsEnabled =
@@ -126,22 +128,23 @@ class NotifUiAdjustmentProvider @Inject constructor(
     }
 
     /**
-     * Returns a adjustment object for the given entry.  This can be compared to a previous instance
+     * Returns a adjustment object for the given entry. This can be compared to a previous instance
      * from the same notification using [NotifUiAdjustment.needReinflate] to determine if it should
      * be reinflated.
      */
-    fun calculateAdjustment(entry: NotificationEntry) = NotifUiAdjustment(
-        key = entry.key,
-        smartActions = entry.ranking.smartActions,
-        smartReplies = entry.ranking.smartReplies,
-        isConversation = entry.ranking.isConversation,
-        isSnoozeEnabled = isSnoozeSettingsEnabled && !entry.isCanceled,
-        isMinimized = isEntryMinimized(entry),
-        needsRedaction =
-            lockscreenUserManager.needsRedaction(entry) ||
-                (screenshareNotificationHiding() &&
-                    sensitiveNotifProtectionController.shouldProtectNotification(entry)),
-        isChildInGroup = entry.hasEverBeenGroupChild(),
-        isGroupSummary = entry.hasEverBeenGroupSummary(),
-    )
+    fun calculateAdjustment(entry: NotificationEntry) =
+        NotifUiAdjustment(
+            key = entry.key,
+            smartActions = entry.ranking.smartActions,
+            smartReplies = entry.ranking.smartReplies,
+            isConversation = entry.ranking.isConversation,
+            isSnoozeEnabled = isSnoozeSettingsEnabled && !entry.isCanceled,
+            isMinimized = isEntryMinimized(entry),
+            needsRedaction =
+                lockscreenUserManager.needsRedaction(entry) ||
+                    (screenshareNotificationHiding() &&
+                        sensitiveNotifProtectionController.shouldProtectNotification(entry)),
+            isChildInGroup = entry.hasEverBeenGroupChild(),
+            isGroupSummary = entry.hasEverBeenGroupSummary(),
+        )
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/CommonVisualInterruptionSuppressors.kt b/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/CommonVisualInterruptionSuppressors.kt
index 42a5bdf0f19ba8234dd45d7c9ee7e8bb8a1f3a92..f84b5f48c864131e4a032a56323c8ba4d9561074 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/CommonVisualInterruptionSuppressors.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/CommonVisualInterruptionSuppressors.kt
@@ -33,8 +33,8 @@ import android.os.PowerManager
 import android.provider.Settings
 import android.provider.Settings.Global.HEADS_UP_NOTIFICATIONS_ENABLED
 import android.provider.Settings.Global.HEADS_UP_OFF
+import com.android.internal.logging.UiEvent
 import com.android.internal.logging.UiEventLogger
-import com.android.internal.logging.UiEvent;
 import com.android.systemui.dagger.qualifiers.Main
 import com.android.systemui.plugins.statusbar.StatusBarStateController
 import com.android.systemui.settings.UserTracker
@@ -86,7 +86,7 @@ class PeekDisabledSuppressor(
                 }
             }
 
-        globalSettings.registerContentObserver(
+        globalSettings.registerContentObserverSync(
             globalSettings.getUriFor(HEADS_UP_NOTIFICATIONS_ENABLED),
             /* notifyForDescendants = */ true,
             observer
@@ -94,7 +94,7 @@ class PeekDisabledSuppressor(
 
         // QQQ: Do we need to register for SETTING_HEADS_UP_TICKER? It seems unused.
 
-        observer.onChange(/* selfChange = */ true)
+        observer.onChange(/* selfChange= */ true)
     }
 }
 
@@ -243,6 +243,7 @@ class AlertKeyguardVisibilitySuppressor(
     override fun shouldSuppress(entry: NotificationEntry) =
         keyguardNotificationVisibilityProvider.shouldHideNotification(entry)
 }
+
 class AvalancheSuppressor(
     private val avalancheProvider: AvalancheProvider,
     private val systemClock: SystemClock,
@@ -268,38 +269,33 @@ class AvalancheSuppressor(
         SUPPRESS
     }
 
-     enum class AvalancheEvent(private val id: Int) : UiEventLogger.UiEventEnum {
-         @UiEvent(doc = "An avalanche event occurred but this notification was suppressed by a " +
-                 "non-avalanche suppressor.")
-         START(1802),
-
-         @UiEvent(doc = "HUN was suppressed in avalanche.")
-         SUPPRESS(1803),
-
-         @UiEvent(doc = "HUN allowed during avalanche because it is high priority.")
-         ALLOW_CONVERSATION_AFTER_AVALANCHE(1804),
-
-         @UiEvent(doc = "HUN allowed during avalanche because it is a high priority conversation.")
-         ALLOW_HIGH_PRIORITY_CONVERSATION_ANY_TIME(1805),
-
-         @UiEvent(doc = "HUN allowed during avalanche because it is a call.")
-         ALLOW_CALLSTYLE(1806),
-
-         @UiEvent(doc = "HUN allowed during avalanche because it is a calendar notification.")
-         ALLOW_CATEGORY_REMINDER(1807),
-
-         @UiEvent(doc = "HUN allowed during avalanche because it is a calendar notification.")
-         ALLOW_CATEGORY_EVENT(1808),
-
-         @UiEvent(doc = "HUN allowed during avalanche because it has a full screen intent and " +
-                 "the full screen intent permission is granted.")
-         ALLOW_FSI_WITH_PERMISSION_ON(1809),
-
-         @UiEvent(doc = "HUN allowed during avalanche because it is colorized.")
-         ALLOW_COLORIZED(1810),
-
-         @UiEvent(doc = "HUN allowed during avalanche because it is an emergency notification.")
-         ALLOW_EMERGENCY(1811);
+    enum class AvalancheEvent(private val id: Int) : UiEventLogger.UiEventEnum {
+        @UiEvent(
+            doc =
+                "An avalanche event occurred but this notification was suppressed by a " +
+                    "non-avalanche suppressor."
+        )
+        START(1802),
+        @UiEvent(doc = "HUN was suppressed in avalanche.") SUPPRESS(1803),
+        @UiEvent(doc = "HUN allowed during avalanche because it is high priority.")
+        ALLOW_CONVERSATION_AFTER_AVALANCHE(1804),
+        @UiEvent(doc = "HUN allowed during avalanche because it is a high priority conversation.")
+        ALLOW_HIGH_PRIORITY_CONVERSATION_ANY_TIME(1805),
+        @UiEvent(doc = "HUN allowed during avalanche because it is a call.") ALLOW_CALLSTYLE(1806),
+        @UiEvent(doc = "HUN allowed during avalanche because it is a calendar notification.")
+        ALLOW_CATEGORY_REMINDER(1807),
+        @UiEvent(doc = "HUN allowed during avalanche because it is a calendar notification.")
+        ALLOW_CATEGORY_EVENT(1808),
+        @UiEvent(
+            doc =
+                "HUN allowed during avalanche because it has a full screen intent and " +
+                    "the full screen intent permission is granted."
+        )
+        ALLOW_FSI_WITH_PERMISSION_ON(1809),
+        @UiEvent(doc = "HUN allowed during avalanche because it is colorized.")
+        ALLOW_COLORIZED(1810),
+        @UiEvent(doc = "HUN allowed during avalanche because it is an emergency notification.")
+        ALLOW_EMERGENCY(1811);
 
         override fun getId(): Int {
             return id
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/KeyguardNotificationVisibilityProvider.kt b/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/KeyguardNotificationVisibilityProvider.kt
index 332ece428a6e6ed54ec8675de7411b2802058dbf..c7548aae713191109206ae56105083730cee16a7 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/KeyguardNotificationVisibilityProvider.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/KeyguardNotificationVisibilityProvider.kt
@@ -14,7 +14,6 @@ import com.android.systemui.CoreStartable
 import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.dagger.qualifiers.Main
 import com.android.systemui.flags.FeatureFlagsClassic
-import com.android.systemui.flags.Flags
 import com.android.systemui.plugins.statusbar.StatusBarStateController
 import com.android.systemui.settings.UserTracker
 import com.android.systemui.statusbar.NotificationLockscreenUserManager
@@ -41,8 +40,8 @@ import javax.inject.Inject
 /** Determines if notifications should be visible based on the state of the keyguard. */
 interface KeyguardNotificationVisibilityProvider {
     /**
-     * Determines if the given notification should be hidden based on the current keyguard state.
-     * If a [Consumer] registered via [addOnStateChangedListener] is invoked, the results of this
+     * Determines if the given notification should be hidden based on the current keyguard state. If
+     * a [Consumer] registered via [addOnStateChangedListener] is invoked, the results of this
      * method may no longer be valid and should be re-queried.
      */
     fun shouldHideNotification(entry: NotificationEntry): Boolean
@@ -61,8 +60,9 @@ object KeyguardNotificationVisibilityProviderModule
 @Module
 interface KeyguardNotificationVisibilityProviderImplModule {
     @Binds
-    fun bindImpl(impl: KeyguardNotificationVisibilityProviderImpl):
-            KeyguardNotificationVisibilityProvider
+    fun bindImpl(
+        impl: KeyguardNotificationVisibilityProviderImpl
+    ): KeyguardNotificationVisibilityProvider
 
     @Binds
     @IntoMap
@@ -71,7 +71,9 @@ interface KeyguardNotificationVisibilityProviderImplModule {
 }
 
 @SysUISingleton
-class KeyguardNotificationVisibilityProviderImpl @Inject constructor(
+class KeyguardNotificationVisibilityProviderImpl
+@Inject
+constructor(
     @Main private val handler: Handler,
     private val keyguardStateController: KeyguardStateController,
     private val lockscreenUserManager: NotificationLockscreenUserManager,
@@ -84,76 +86,88 @@ class KeyguardNotificationVisibilityProviderImpl @Inject constructor(
     private val featureFlags: FeatureFlagsClassic
 ) : CoreStartable, KeyguardNotificationVisibilityProvider {
     private val showSilentNotifsUri =
-            secureSettings.getUriFor(Settings.Secure.LOCK_SCREEN_SHOW_SILENT_NOTIFICATIONS)
+        secureSettings.getUriFor(Settings.Secure.LOCK_SCREEN_SHOW_SILENT_NOTIFICATIONS)
     private val onStateChangedListeners = ListenerSet<Consumer<String>>()
     private var hideSilentNotificationsOnLockscreen: Boolean = false
 
-    private val userTrackerCallback = object : UserTracker.Callback {
-        override fun onUserChanged(newUser: Int, userContext: Context) {
-            readShowSilentNotificationSetting()
-            if (isLockedOrLocking) {
-                // maybe public mode changed
-                notifyStateChanged("onUserSwitched")
+    private val userTrackerCallback =
+        object : UserTracker.Callback {
+            override fun onUserChanged(newUser: Int, userContext: Context) {
+                readShowSilentNotificationSetting()
+                if (isLockedOrLocking) {
+                    // maybe public mode changed
+                    notifyStateChanged("onUserSwitched")
+                }
             }
         }
-    }
 
     override fun start() {
         readShowSilentNotificationSetting()
-        keyguardStateController.addCallback(object : KeyguardStateController.Callback {
-            override fun onUnlockedChanged() {
-                notifyStateChanged("onUnlockedChanged")
-            }
+        keyguardStateController.addCallback(
+            object : KeyguardStateController.Callback {
+                override fun onUnlockedChanged() {
+                    notifyStateChanged("onUnlockedChanged")
+                }
 
-            override fun onKeyguardShowingChanged() {
-                notifyStateChanged("onKeyguardShowingChanged")
+                override fun onKeyguardShowingChanged() {
+                    notifyStateChanged("onKeyguardShowingChanged")
+                }
             }
-        })
-        keyguardUpdateMonitor.registerCallback(object : KeyguardUpdateMonitorCallback() {
-            override fun onStrongAuthStateChanged(userId: Int) {
-                notifyStateChanged("onStrongAuthStateChanged")
+        )
+        keyguardUpdateMonitor.registerCallback(
+            object : KeyguardUpdateMonitorCallback() {
+                override fun onStrongAuthStateChanged(userId: Int) {
+                    notifyStateChanged("onStrongAuthStateChanged")
+                }
             }
-        })
+        )
 
         // register lockscreen settings changed callbacks:
-        val settingsObserver: ContentObserver = object : ContentObserver(handler) {
-            override fun onChange(selfChange: Boolean, uri: Uri?) {
-                if (uri == showSilentNotifsUri) {
-                    readShowSilentNotificationSetting()
-                }
-                if (isLockedOrLocking) {
-                    notifyStateChanged("Settings $uri changed")
+        val settingsObserver: ContentObserver =
+            object : ContentObserver(handler) {
+                override fun onChange(selfChange: Boolean, uri: Uri?) {
+                    if (uri == showSilentNotifsUri) {
+                        readShowSilentNotificationSetting()
+                    }
+                    if (isLockedOrLocking) {
+                        notifyStateChanged("Settings $uri changed")
+                    }
                 }
             }
-        }
 
-        secureSettings.registerContentObserverForUser(
-                Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS,
-                settingsObserver,
-                UserHandle.USER_ALL)
+        secureSettings.registerContentObserverForUserSync(
+            Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS,
+            settingsObserver,
+            UserHandle.USER_ALL
+        )
 
-        secureSettings.registerContentObserverForUser(
-                Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS,
-                true,
-                settingsObserver,
-                UserHandle.USER_ALL)
+        secureSettings.registerContentObserverForUserSync(
+            Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS,
+            true,
+            settingsObserver,
+            UserHandle.USER_ALL
+        )
 
-        globalSettings.registerContentObserver(Settings.Global.ZEN_MODE, settingsObserver)
+        globalSettings.registerContentObserverSync(Settings.Global.ZEN_MODE, settingsObserver)
 
-        secureSettings.registerContentObserverForUser(
-                Settings.Secure.LOCK_SCREEN_SHOW_SILENT_NOTIFICATIONS,
-                settingsObserver,
-                UserHandle.USER_ALL)
+        secureSettings.registerContentObserverForUserSync(
+            Settings.Secure.LOCK_SCREEN_SHOW_SILENT_NOTIFICATIONS,
+            settingsObserver,
+            UserHandle.USER_ALL
+        )
 
         // register (maybe) public mode changed callbacks:
-        statusBarStateController.addCallback(object : StatusBarStateController.StateListener {
-            override fun onStateChanged(newState: Int) {
-                notifyStateChanged("onStatusBarStateChanged")
-            }
-            override fun onUpcomingStateChanged(state: Int) {
-                notifyStateChanged("onStatusBarUpcomingStateChanged")
+        statusBarStateController.addCallback(
+            object : StatusBarStateController.StateListener {
+                override fun onStateChanged(newState: Int) {
+                    notifyStateChanged("onStatusBarStateChanged")
+                }
+
+                override fun onUpcomingStateChanged(state: Int) {
+                    notifyStateChanged("onStatusBarUpcomingStateChanged")
+                }
             }
-        })
+        )
         userTracker.addCallback(userTrackerCallback, HandlerExecutor(handler))
     }
 
@@ -169,45 +183,48 @@ class KeyguardNotificationVisibilityProviderImpl @Inject constructor(
         onStateChangedListeners.forEach { it.accept(reason) }
     }
 
-    override fun shouldHideNotification(entry: NotificationEntry): Boolean = when {
-        // Keyguard state doesn't matter if the keyguard is not showing.
-        !isLockedOrLocking -> false
-        // Notifications not allowed on the lockscreen, always hide.
-        !lockscreenUserManager.shouldShowLockscreenNotifications() -> true
-        // User settings do not allow this notification on the lockscreen, so hide it.
-        userSettingsDisallowNotification(entry) -> true
-        // Entry is explicitly marked SECRET, so hide it.
-        entry.sbn.notification.visibility == VISIBILITY_SECRET -> true
-        // if entry is silent, apply custom logic to see if should hide
-        shouldHideIfEntrySilent(entry) -> true
-        else -> false
-    }
+    override fun shouldHideNotification(entry: NotificationEntry): Boolean =
+        when {
+            // Keyguard state doesn't matter if the keyguard is not showing.
+            !isLockedOrLocking -> false
+            // Notifications not allowed on the lockscreen, always hide.
+            !lockscreenUserManager.shouldShowLockscreenNotifications() -> true
+            // User settings do not allow this notification on the lockscreen, so hide it.
+            userSettingsDisallowNotification(entry) -> true
+            // Entry is explicitly marked SECRET, so hide it.
+            entry.sbn.notification.visibility == VISIBILITY_SECRET -> true
+            // if entry is silent, apply custom logic to see if should hide
+            shouldHideIfEntrySilent(entry) -> true
+            else -> false
+        }
 
-    private fun shouldHideIfEntrySilent(entry: ListEntry): Boolean = when {
-        // Show if explicitly high priority (not hidden)
-        highPriorityProvider.isExplicitlyHighPriority(entry) -> false
-        // Ambient notifications are hidden always from lock screen
-        entry.representativeEntry?.isAmbient == true -> true
-        // [Now notification is silent]
-        // Hide regardless of parent priority if user wants silent notifs hidden
-        hideSilentNotificationsOnLockscreen -> true
-        // Parent priority is high enough to be shown on the lockscreen, do not hide.
-        entry.parent?.let(::shouldHideIfEntrySilent) == false -> false
-        // Show when silent notifications are allowed on lockscreen
-        else -> false
-    }
+    private fun shouldHideIfEntrySilent(entry: ListEntry): Boolean =
+        when {
+            // Show if explicitly high priority (not hidden)
+            highPriorityProvider.isExplicitlyHighPriority(entry) -> false
+            // Ambient notifications are hidden always from lock screen
+            entry.representativeEntry?.isAmbient == true -> true
+            // [Now notification is silent]
+            // Hide regardless of parent priority if user wants silent notifs hidden
+            hideSilentNotificationsOnLockscreen -> true
+            // Parent priority is high enough to be shown on the lockscreen, do not hide.
+            entry.parent?.let(::shouldHideIfEntrySilent) == false -> false
+            // Show when silent notifications are allowed on lockscreen
+            else -> false
+        }
 
     private fun userSettingsDisallowNotification(entry: NotificationEntry): Boolean {
-        fun disallowForUser(user: Int) = when {
-            // user is in lockdown, always disallow
-            keyguardUpdateMonitor.isUserInLockdown(user) -> true
-            // device isn't public, no need to check public-related settings, so allow
-            !lockscreenUserManager.isLockscreenPublicMode(user) -> false
-            // entry is meant to be secret on the lockscreen, disallow
-            isRankingVisibilitySecret(entry) -> true
-            // disallow if user disallows notifications in public
-            else -> !lockscreenUserManager.userAllowsNotificationsInPublic(user)
-        }
+        fun disallowForUser(user: Int) =
+            when {
+                // user is in lockdown, always disallow
+                keyguardUpdateMonitor.isUserInLockdown(user) -> true
+                // device isn't public, no need to check public-related settings, so allow
+                !lockscreenUserManager.isLockscreenPublicMode(user) -> false
+                // entry is meant to be secret on the lockscreen, disallow
+                isRankingVisibilitySecret(entry) -> true
+                // disallow if user disallows notifications in public
+                else -> !lockscreenUserManager.userAllowsNotificationsInPublic(user)
+            }
         val currentUser = lockscreenUserManager.currentUserId
         val notifUser = entry.sbn.user.identifier
         return when {
@@ -222,28 +239,35 @@ class KeyguardNotificationVisibilityProviderImpl @Inject constructor(
         // ranking.lockscreenVisibilityOverride contains possibly out of date DPC and Setting
         // info, and NotificationLockscreenUserManagerImpl is already listening for updates
         // to those
-        return entry.ranking.channel != null && entry.ranking.channel.lockscreenVisibility ==
-                    VISIBILITY_SECRET
+        return entry.ranking.channel != null &&
+            entry.ranking.channel.lockscreenVisibility == VISIBILITY_SECRET
     }
 
-    override fun dump(pw: PrintWriter, args: Array<out String>) = pw.asIndenting().run {
-        println("isLockedOrLocking", isLockedOrLocking)
-        withIncreasedIndent {
-            println("keyguardStateController.isShowing", keyguardStateController.isShowing)
-            println("statusBarStateController.currentOrUpcomingState",
-                statusBarStateController.currentOrUpcomingState)
+    override fun dump(pw: PrintWriter, args: Array<out String>) =
+        pw.asIndenting().run {
+            println("isLockedOrLocking", isLockedOrLocking)
+            withIncreasedIndent {
+                println("keyguardStateController.isShowing", keyguardStateController.isShowing)
+                println(
+                    "statusBarStateController.currentOrUpcomingState",
+                    statusBarStateController.currentOrUpcomingState
+                )
+            }
+            println("hideSilentNotificationsOnLockscreen", hideSilentNotificationsOnLockscreen)
         }
-        println("hideSilentNotificationsOnLockscreen", hideSilentNotificationsOnLockscreen)
-    }
 
-    private val isLockedOrLocking get() =
-        keyguardStateController.isShowing ||
+    private val isLockedOrLocking
+        get() =
+            keyguardStateController.isShowing ||
                 statusBarStateController.currentOrUpcomingState == StatusBarState.KEYGUARD
 
     private fun readShowSilentNotificationSetting() {
         val showSilentNotifs =
-                secureSettings.getBoolForUser(Settings.Secure.LOCK_SCREEN_SHOW_SILENT_NOTIFICATIONS,
-                        false, UserHandle.USER_CURRENT)
+            secureSettings.getBoolForUser(
+                Settings.Secure.LOCK_SCREEN_SHOW_SILENT_NOTIFICATIONS,
+                false,
+                UserHandle.USER_CURRENT
+            )
         hideSilentNotificationsOnLockscreen = !showSilentNotifs
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/NotificationInterruptStateProviderImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/NotificationInterruptStateProviderImpl.java
index 74925c8dd5066210ecd276588252fa8956556392..fea360d4e02a8420effbca4ab1acb34050699841 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/NotificationInterruptStateProviderImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/interruption/NotificationInterruptStateProviderImpl.java
@@ -171,11 +171,11 @@ public class NotificationInterruptStateProviderImpl implements NotificationInter
         };
 
         if (ENABLE_HEADS_UP) {
-            mGlobalSettings.registerContentObserver(
+            mGlobalSettings.registerContentObserverSync(
                     mGlobalSettings.getUriFor(HEADS_UP_NOTIFICATIONS_ENABLED),
                     true,
                     headsUpObserver);
-            mGlobalSettings.registerContentObserver(
+            mGlobalSettings.registerContentObserverSync(
                     mGlobalSettings.getUriFor(SETTING_HEADS_UP_TICKER), true,
                     headsUpObserver);
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationSettingsController.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationSettingsController.java
index a17c066953e1c8c5f4b2f35235f0187f6c9c9f4f..30dbfed0349f6fe86543034a5f8231d5b0c44943 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationSettingsController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/NotificationSettingsController.java
@@ -92,9 +92,9 @@ public class NotificationSettingsController implements Dumpable {
 
                 synchronized (mListeners) {
                     if (mListeners.size() > 0) {
-                        mSecureSettings.unregisterContentObserver(mContentObserver);
+                        mSecureSettings.unregisterContentObserverSync(mContentObserver);
                         for (Uri uri : mListeners.keySet()) {
-                            mSecureSettings.registerContentObserverForUser(
+                            mSecureSettings.registerContentObserverForUserSync(
                                     uri, false, mContentObserver, newUser);
                         }
                     }
@@ -131,7 +131,7 @@ public class NotificationSettingsController implements Dumpable {
             mListeners.put(uri, currentListeners);
             if (currentListeners.size() == 1) {
                 mBackgroundHandler.post(() -> {
-                    mSecureSettings.registerContentObserverForUser(
+                    mSecureSettings.registerContentObserverForUserSync(
                             uri, false, mContentObserver, mUserTracker.getUserId());
                 });
             }
@@ -159,7 +159,7 @@ public class NotificationSettingsController implements Dumpable {
 
             if (mListeners.size() == 0) {
                 mBackgroundHandler.post(() -> {
-                    mSecureSettings.unregisterContentObserver(mContentObserver);
+                    mSecureSettings.unregisterContentObserverSync(mContentObserver);
                 });
             }
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardStatusBarViewController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardStatusBarViewController.java
index 6d4301f8475ffcc24fa7b6c19d349c5208f4e796..e44edcbd4ebb2e2fe4fe1477aab5a683ae094678 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardStatusBarViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardStatusBarViewController.java
@@ -398,7 +398,7 @@ public class KeyguardStatusBarViewController extends ViewController<KeyguardStat
         mSystemIconsContainer.setOnHoverListener(hoverListener);
         mView.setOnApplyWindowInsetsListener(
                 (view, windowInsets) -> mView.updateWindowInsets(windowInsets, mInsetsProvider));
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 Settings.Secure.STATUS_BAR_SHOW_VIBRATE_ICON,
                 false,
                 mVolumeSettingObserver,
@@ -416,7 +416,7 @@ public class KeyguardStatusBarViewController extends ViewController<KeyguardStat
         mStatusBarStateController.removeCallback(mStatusBarStateListener);
         mKeyguardUpdateMonitor.removeCallback(mKeyguardUpdateMonitorCallback);
         mDisableStateTracker.stopTracking(mCommandQueue);
-        mSecureSettings.unregisterContentObserver(mVolumeSettingObserver);
+        mSecureSettings.unregisterContentObserverSync(mVolumeSettingObserver);
         if (mTintedIconManager != null) {
             mStatusBarIconController.removeIconGroup(mTintedIconManager);
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/UnlockedScreenOffAnimationController.kt b/packages/SystemUI/src/com/android/systemui/statusbar/phone/UnlockedScreenOffAnimationController.kt
index 479aef167b5bfb61a153a61d94ea972a5d66890f..c53558ea7fd2dec2eb4a09f34b98b8e7ee39b779 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/UnlockedScreenOffAnimationController.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/UnlockedScreenOffAnimationController.kt
@@ -23,9 +23,9 @@ import com.android.systemui.dagger.SysUISingleton
 import com.android.systemui.keyguard.KeyguardViewMediator
 import com.android.systemui.keyguard.MigrateClocksToBlueprint
 import com.android.systemui.keyguard.WakefulnessLifecycle
-import com.android.systemui.shade.domain.interactor.ShadeLockscreenInteractor
 import com.android.systemui.shade.ShadeViewController
 import com.android.systemui.shade.domain.interactor.PanelExpansionInteractor
+import com.android.systemui.shade.domain.interactor.ShadeLockscreenInteractor
 import com.android.systemui.statusbar.CircleReveal
 import com.android.systemui.statusbar.LightRevealScrim
 import com.android.systemui.statusbar.NotificationShadeWindowController
@@ -162,7 +162,7 @@ constructor(
         this.centralSurfaces = centralSurfaces
 
         updateAnimatorDurationScale()
-        globalSettings.registerContentObserver(
+        globalSettings.registerContentObserverSync(
             Settings.Global.getUriFor(Settings.Global.ANIMATOR_DURATION_SCALE),
             /* notify for descendants */ false,
             animatorDurationScaleObserver
@@ -376,8 +376,9 @@ constructor(
         // We currently draw both the light reveal scrim, and the AOD UI, in the shade. If it's
         // already expanded and showing notifications/QS, the animation looks really messy. For now,
         // disable it if the notification panel is expanded.
-        if ((!this::centralSurfaces.isInitialized ||
-                    panelExpansionInteractorLazy.get().isPanelExpanded) &&
+        if (
+            (!this::centralSurfaces.isInitialized ||
+                panelExpansionInteractorLazy.get().isPanelExpanded) &&
                 // Status bar might be expanded because we have started
                 // playing the animation already
                 !isAnimationPlaying()
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/fragment/CollapsedStatusBarFragment.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/fragment/CollapsedStatusBarFragment.java
index aac211ae6b46ffe03fc56fb52f043fb64c9a70e3..3d8090d70faa97ac8b487993f3d73b7af489c15b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/fragment/CollapsedStatusBarFragment.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/fragment/CollapsedStatusBarFragment.java
@@ -80,6 +80,10 @@ import com.android.systemui.util.CarrierConfigTracker.CarrierConfigChangedListen
 import com.android.systemui.util.CarrierConfigTracker.DefaultDataSubscriptionChangedListener;
 import com.android.systemui.util.settings.SecureSettings;
 
+import kotlin.Unit;
+
+import kotlinx.coroutines.DisposableHandle;
+
 import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -90,10 +94,6 @@ import java.util.concurrent.Executor;
 
 import javax.inject.Inject;
 
-import kotlin.Unit;
-
-import kotlinx.coroutines.DisposableHandle;
-
 /**
  * Contains the collapsed status bar and handles hiding/showing based on disable flags
  * and keyguard state. Also manages lifecycle to make sure the views it contains are being
@@ -431,7 +431,7 @@ public class CollapsedStatusBarFragment extends Fragment implements CommandQueue
         initOngoingCallChip();
         mAnimationScheduler.addCallback(this);
 
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 Settings.Secure.STATUS_BAR_SHOW_VIBRATE_ICON,
                 false,
                 mVolumeSettingObserver,
@@ -445,7 +445,7 @@ public class CollapsedStatusBarFragment extends Fragment implements CommandQueue
         mStatusBarStateController.removeCallback(this);
         mOngoingCallController.removeCallback(mOngoingCallListener);
         mAnimationScheduler.removeCallback(this);
-        mSecureSettings.unregisterContentObserver(mVolumeSettingObserver);
+        mSecureSettings.unregisterContentObserverSync(mVolumeSettingObserver);
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/BaseHeadsUpManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/BaseHeadsUpManager.java
index 4bd868179fafbc963bf122f02ff6b865ef771f63..fad5df827ffa1b30a6887843eeccccb6abd4c959 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/BaseHeadsUpManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/BaseHeadsUpManager.java
@@ -138,7 +138,7 @@ public abstract class BaseHeadsUpManager implements HeadsUpManager {
                 }
             }
         };
-        globalSettings.registerContentObserver(
+        globalSettings.registerContentObserverSync(
                 globalSettings.getUriFor(SETTING_HEADS_UP_SNOOZE_LENGTH_MS),
                 /* notifyForDescendants = */ false,
                 settingsObserver);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/DeviceProvisionedControllerImpl.kt b/packages/SystemUI/src/com/android/systemui/statusbar/policy/DeviceProvisionedControllerImpl.kt
index 8b63dfe28f08d400397d03c4f5af49260fd10023..8123f8f3bd3d13d8984f7a3a3947adaadf6e9a76 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/DeviceProvisionedControllerImpl.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/DeviceProvisionedControllerImpl.kt
@@ -42,16 +42,16 @@ import java.util.concurrent.atomic.AtomicBoolean
 import javax.inject.Inject
 
 @SysUISingleton
-open class DeviceProvisionedControllerImpl @Inject constructor(
+open class DeviceProvisionedControllerImpl
+@Inject
+constructor(
     private val secureSettings: SecureSettings,
     private val globalSettings: GlobalSettings,
     private val userTracker: UserTracker,
     private val dumpManager: DumpManager,
     @Background private val backgroundHandler: Handler,
     @Main private val mainExecutor: Executor
-) : DeviceProvisionedController,
-    DeviceProvisionedController.DeviceProvisionedListener,
-    Dumpable {
+) : DeviceProvisionedController, DeviceProvisionedController.DeviceProvisionedListener, Dumpable {
 
     companion object {
         private const val ALL_USERS = -1
@@ -63,8 +63,7 @@ open class DeviceProvisionedControllerImpl @Inject constructor(
     private val userSetupUri = secureSettings.getUriFor(Settings.Secure.USER_SETUP_COMPLETE)
 
     private val deviceProvisioned = AtomicBoolean(false)
-    @GuardedBy("lock")
-    private val userSetupComplete = SparseBooleanArray()
+    @GuardedBy("lock") private val userSetupComplete = SparseBooleanArray()
     @GuardedBy("lock")
     private val listeners = ArraySet<DeviceProvisionedController.DeviceProvisionedListener>()
 
@@ -81,42 +80,42 @@ open class DeviceProvisionedControllerImpl @Inject constructor(
         return _currentUser
     }
 
-    private val observer = object : ContentObserver(backgroundHandler) {
-        override fun onChange(
-            selfChange: Boolean,
-            uris: MutableCollection<Uri>,
-            flags: Int,
-            userId: Int
-        ) {
-            val updateDeviceProvisioned = deviceProvisionedUri in uris
-            val updateUser = if (userSetupUri in uris) userId else NO_USERS
-            updateValues(updateDeviceProvisioned, updateUser)
-            if (updateDeviceProvisioned) {
-                onDeviceProvisionedChanged()
-            }
-            if (updateUser != NO_USERS) {
-                onUserSetupChanged()
+    private val observer =
+        object : ContentObserver(backgroundHandler) {
+            override fun onChange(
+                selfChange: Boolean,
+                uris: MutableCollection<Uri>,
+                flags: Int,
+                userId: Int
+            ) {
+                val updateDeviceProvisioned = deviceProvisionedUri in uris
+                val updateUser = if (userSetupUri in uris) userId else NO_USERS
+                updateValues(updateDeviceProvisioned, updateUser)
+                if (updateDeviceProvisioned) {
+                    onDeviceProvisionedChanged()
+                }
+                if (updateUser != NO_USERS) {
+                    onUserSetupChanged()
+                }
             }
         }
-    }
 
-    private val userChangedCallback = object : UserTracker.Callback {
-        @WorkerThread
-        override fun onUserChanged(newUser: Int, userContext: Context) {
-            updateValues(updateDeviceProvisioned = false, updateUser = newUser)
-            onUserSwitched()
-        }
+    private val userChangedCallback =
+        object : UserTracker.Callback {
+            @WorkerThread
+            override fun onUserChanged(newUser: Int, userContext: Context) {
+                updateValues(updateDeviceProvisioned = false, updateUser = newUser)
+                onUserSwitched()
+            }
 
-        override fun onProfilesChanged(profiles: List<UserInfo>) {}
-    }
+            override fun onProfilesChanged(profiles: List<UserInfo>) {}
+        }
 
     init {
         userSetupComplete.put(currentUser, false)
     }
 
-    /**
-     * Call to initialize values and register observers
-     */
+    /** Call to initialize values and register observers */
     open fun init() {
         if (!initted.compareAndSet(false, true)) {
             return
@@ -124,31 +123,39 @@ open class DeviceProvisionedControllerImpl @Inject constructor(
         dumpManager.registerDumpable(this)
         updateValues()
         userTracker.addCallback(userChangedCallback, backgroundExecutor)
-        globalSettings.registerContentObserver(deviceProvisionedUri, observer)
-        secureSettings.registerContentObserverForUser(userSetupUri, observer, UserHandle.USER_ALL)
+        globalSettings.registerContentObserverSync(deviceProvisionedUri, observer)
+        secureSettings.registerContentObserverForUserSync(
+            userSetupUri,
+            observer,
+            UserHandle.USER_ALL
+        )
     }
 
     @WorkerThread
-    private fun updateValues(
-            updateDeviceProvisioned: Boolean = true,
-            updateUser: Int = ALL_USERS
-    ) {
+    private fun updateValues(updateDeviceProvisioned: Boolean = true, updateUser: Int = ALL_USERS) {
         if (updateDeviceProvisioned) {
-            deviceProvisioned
-                    .set(globalSettings.getInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0)
+            deviceProvisioned.set(globalSettings.getInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0)
         }
         synchronized(lock) {
             if (updateUser == ALL_USERS) {
                 val n = userSetupComplete.size()
                 for (i in 0 until n) {
                     val user = userSetupComplete.keyAt(i)
-                    val value = secureSettings
-                            .getIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, user) != 0
+                    val value =
+                        secureSettings.getIntForUser(
+                            Settings.Secure.USER_SETUP_COMPLETE,
+                            0,
+                            user
+                        ) != 0
                     userSetupComplete.put(user, value)
                 }
             } else if (updateUser != NO_USERS) {
-                val value = secureSettings
-                        .getIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, updateUser) != 0
+                val value =
+                    secureSettings.getIntForUser(
+                        Settings.Secure.USER_SETUP_COMPLETE,
+                        0,
+                        updateUser
+                    ) != 0
                 userSetupComplete.put(updateUser, value)
             }
         }
@@ -160,15 +167,11 @@ open class DeviceProvisionedControllerImpl @Inject constructor(
      * The listener will not be called when this happens.
      */
     override fun addCallback(listener: DeviceProvisionedController.DeviceProvisionedListener) {
-        synchronized(lock) {
-            listeners.add(listener)
-        }
+        synchronized(lock) { listeners.add(listener) }
     }
 
     override fun removeCallback(listener: DeviceProvisionedController.DeviceProvisionedListener) {
-        synchronized(lock) {
-            listeners.remove(listener)
-        }
+        synchronized(lock) { listeners.remove(listener) }
     }
 
     override fun isDeviceProvisioned(): Boolean {
@@ -176,20 +179,14 @@ open class DeviceProvisionedControllerImpl @Inject constructor(
     }
 
     override fun isUserSetup(user: Int): Boolean {
-        val index = synchronized(lock) {
-            userSetupComplete.indexOfKey(user)
-        }
+        val index = synchronized(lock) { userSetupComplete.indexOfKey(user) }
         return if (index < 0) {
-            val value = secureSettings
-                    .getIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, user) != 0
-            synchronized(lock) {
-                userSetupComplete.put(user, value)
-            }
+            val value =
+                secureSettings.getIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, user) != 0
+            synchronized(lock) { userSetupComplete.put(user, value) }
             value
         } else {
-            synchronized(lock) {
-                userSetupComplete.get(user, false)
-            }
+            synchronized(lock) { userSetupComplete.get(user, false) }
         }
     }
 
@@ -214,12 +211,8 @@ open class DeviceProvisionedControllerImpl @Inject constructor(
     protected fun dispatchChange(
         callback: DeviceProvisionedController.DeviceProvisionedListener.() -> Unit
     ) {
-        val listenersCopy = synchronized(lock) {
-            ArrayList(listeners)
-        }
-        mainExecutor.execute {
-            listenersCopy.forEach(callback)
-        }
+        val listenersCopy = synchronized(lock) { ArrayList(listeners) }
+        mainExecutor.execute { listenersCopy.forEach(callback) }
     }
 
     override fun dump(pw: PrintWriter, args: Array<out String>) {
@@ -229,4 +222,4 @@ open class DeviceProvisionedControllerImpl @Inject constructor(
             pw.println("Listeners: $listeners")
         }
     }
-}
\ No newline at end of file
+}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/LocationControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/LocationControllerImpl.java
index 9eee5d00f7085ecefb2a9e96e94b33e05c8c2d34..f57b69639677116e19f94e7e38423f10da9f18e4 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/LocationControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/LocationControllerImpl.java
@@ -115,7 +115,7 @@ public class LocationControllerImpl extends BroadcastReceiver implements Locatio
         };
 
         // Register to listen for changes in Settings.Secure settings.
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 Settings.Secure.LOCATION_SHOW_SYSTEM_OPS, mContentObserver, UserHandle.USER_ALL);
 
         // Register to listen for changes in DeviceConfig settings.
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensitiveNotificationProtectionControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensitiveNotificationProtectionControllerImpl.java
index 40bb67f2e7464ebe2d25ab06b5c0b1f388fad2a4..9ab8175e13b8c880a837614078d7d4f94fde847e 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensitiveNotificationProtectionControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/SensitiveNotificationProtectionControllerImpl.java
@@ -188,7 +188,7 @@ public class SensitiveNotificationProtectionControllerImpl
                 });
             }
         };
-        settings.registerContentObserver(
+        settings.registerContentObserverSync(
                 DISABLE_SCREEN_SHARE_PROTECTIONS_FOR_APPS_AND_NOTIFICATIONS,
                 developerOptionsObserver);
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/ZenModeControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/ZenModeControllerImpl.java
index 600005b9761064b59a4ca3735874071cc0b311c7..e09e5777a9a364811a6d80d294997575b0560dd7 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/ZenModeControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/ZenModeControllerImpl.java
@@ -140,13 +140,13 @@ public class ZenModeControllerImpl implements ZenModeController, Dumpable {
         mNoMan = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
         if (registerZenModeContentObserverBackground()) {
             bgHandler.post(() -> {
-                globalSettings.registerContentObserver(Global.ZEN_MODE, modeContentObserver);
-                globalSettings.registerContentObserver(Global.ZEN_MODE_CONFIG_ETAG,
+                globalSettings.registerContentObserverSync(Global.ZEN_MODE, modeContentObserver);
+                globalSettings.registerContentObserverSync(Global.ZEN_MODE_CONFIG_ETAG,
                         configContentObserver);
             });
         } else {
-            globalSettings.registerContentObserver(Global.ZEN_MODE, modeContentObserver);
-            globalSettings.registerContentObserver(Global.ZEN_MODE_CONFIG_ETAG,
+            globalSettings.registerContentObserverSync(Global.ZEN_MODE, modeContentObserver);
+            globalSettings.registerContentObserverSync(Global.ZEN_MODE_CONFIG_ETAG,
                     configContentObserver);
         }
         updateZenMode(getModeSettingValueFromProvider());
diff --git a/packages/SystemUI/src/com/android/systemui/theme/ThemeOverlayController.java b/packages/SystemUI/src/com/android/systemui/theme/ThemeOverlayController.java
index 7494649294f5ede69a9cbe5f3c1c819e8d77ce99..4963aae08ab74e0cee62ba240da220f47da18db7 100644
--- a/packages/SystemUI/src/com/android/systemui/theme/ThemeOverlayController.java
+++ b/packages/SystemUI/src/com/android/systemui/theme/ThemeOverlayController.java
@@ -444,7 +444,7 @@ public class ThemeOverlayController implements CoreStartable, Dumpable {
         filter.addAction(Intent.ACTION_WALLPAPER_CHANGED);
         mBroadcastDispatcher.registerReceiver(mBroadcastReceiver, filter, mMainExecutor,
                 UserHandle.ALL);
-        mSecureSettings.registerContentObserverForUser(
+        mSecureSettings.registerContentObserverForUserSync(
                 Settings.Secure.THEME_CUSTOMIZATION_OVERLAY_PACKAGES,
                 false,
                 new ContentObserver(mBgHandler) {
diff --git a/packages/SystemUI/src/com/android/systemui/util/settings/SettingsProxy.kt b/packages/SystemUI/src/com/android/systemui/util/settings/SettingsProxy.kt
index ec89610ce014a29a67adfca40b12daf313ee98f3..ed522331baef4f69f501a12b369390140d3d1abd 100644
--- a/packages/SystemUI/src/com/android/systemui/util/settings/SettingsProxy.kt
+++ b/packages/SystemUI/src/com/android/systemui/util/settings/SettingsProxy.kt
@@ -37,7 +37,6 @@ import android.provider.Settings.SettingNotFoundException
 interface SettingsProxy {
     /** Returns the [ContentResolver] this instance was constructed with. */
     fun getContentResolver(): ContentResolver
-
     /**
      * Construct the content URI for a particular name/value pair, useful for monitoring changes
      * with a ContentObserver.
@@ -46,42 +45,36 @@ interface SettingsProxy {
      * @return the corresponding content URI, or null if not present
      */
     fun getUriFor(name: String): Uri
-
     /**
      * Convenience wrapper around [ContentResolver.registerContentObserver].'
      *
      * Implicitly calls [getUriFor] on the passed in name.
      */
-    fun registerContentObserver(name: String, settingsObserver: ContentObserver) {
-        registerContentObserver(getUriFor(name), settingsObserver)
+    fun registerContentObserverSync(name: String, settingsObserver: ContentObserver) {
+        registerContentObserverSync(getUriFor(name), settingsObserver)
     }
-
     /** Convenience wrapper around [ContentResolver.registerContentObserver].' */
-    fun registerContentObserver(uri: Uri, settingsObserver: ContentObserver) =
-        registerContentObserver(uri, false, settingsObserver)
-
+    fun registerContentObserverSync(uri: Uri, settingsObserver: ContentObserver) =
+        registerContentObserverSync(uri, false, settingsObserver)
     /**
      * Convenience wrapper around [ContentResolver.registerContentObserver].'
      *
      * Implicitly calls [getUriFor] on the passed in name.
      */
-    fun registerContentObserver(
+    fun registerContentObserverSync(
         name: String,
         notifyForDescendants: Boolean,
         settingsObserver: ContentObserver
-    ) = registerContentObserver(getUriFor(name), notifyForDescendants, settingsObserver)
-
+    ) = registerContentObserverSync(getUriFor(name), notifyForDescendants, settingsObserver)
     /** Convenience wrapper around [ContentResolver.registerContentObserver].' */
-    fun registerContentObserver(
+    fun registerContentObserverSync(
         uri: Uri,
         notifyForDescendants: Boolean,
         settingsObserver: ContentObserver
     ) = getContentResolver().registerContentObserver(uri, notifyForDescendants, settingsObserver)
-
     /** See [ContentResolver.unregisterContentObserver]. */
-    fun unregisterContentObserver(settingsObserver: ContentObserver) =
+    fun unregisterContentObserverSync(settingsObserver: ContentObserver) =
         getContentResolver().unregisterContentObserver(settingsObserver)
-
     /**
      * Look up a name in the database.
      *
@@ -89,7 +82,6 @@ interface SettingsProxy {
      * @return the corresponding value, or null if not present
      */
     fun getString(name: String): String
-
     /**
      * Store a name/value pair into the database.
      *
@@ -98,7 +90,6 @@ interface SettingsProxy {
      * @return true if the value was set, false on database errors
      */
     fun putString(name: String, value: String): Boolean
-
     /**
      * Store a name/value pair into the database.
      *
@@ -129,7 +120,6 @@ interface SettingsProxy {
      * @see .resetToDefaults
      */
     fun putString(name: String, value: String, tag: String, makeDefault: Boolean): Boolean
-
     /**
      * Convenience function for retrieving a single secure settings value as an integer. Note that
      * internally setting values are always stored as strings; this function converts the string to
@@ -148,7 +138,6 @@ interface SettingsProxy {
             def
         }
     }
-
     /**
      * Convenience function for retrieving a single secure settings value as an integer. Note that
      * internally setting values are always stored as strings; this function converts the string to
@@ -171,7 +160,6 @@ interface SettingsProxy {
             throw SettingNotFoundException(name)
         }
     }
-
     /**
      * Convenience function for updating a single settings value as an integer. This will either
      * create a new entry in the table if the given name does not exist, or modify the value of the
@@ -185,7 +173,6 @@ interface SettingsProxy {
     fun putInt(name: String, value: Int): Boolean {
         return putString(name, value.toString())
     }
-
     /**
      * Convenience function for retrieving a single secure settings value as a boolean. Note that
      * internally setting values are always stored as strings; this function converts the string to
@@ -199,7 +186,6 @@ interface SettingsProxy {
     fun getBool(name: String, def: Boolean): Boolean {
         return getInt(name, if (def) 1 else 0) != 0
     }
-
     /**
      * Convenience function for retrieving a single secure settings value as a boolean. Note that
      * internally setting values are always stored as strings; this function converts the string to
@@ -217,7 +203,6 @@ interface SettingsProxy {
     fun getBool(name: String): Boolean {
         return getInt(name) != 0
     }
-
     /**
      * Convenience function for updating a single settings value as a boolean. This will either
      * create a new entry in the table if the given name does not exist, or modify the value of the
@@ -231,7 +216,6 @@ interface SettingsProxy {
     fun putBool(name: String, value: Boolean): Boolean {
         return putInt(name, if (value) 1 else 0)
     }
-
     /**
      * Convenience function for retrieving a single secure settings value as a `long`. Note that
      * internally setting values are always stored as strings; this function converts the string to
@@ -246,7 +230,6 @@ interface SettingsProxy {
         val valString = getString(name)
         return parseLongOrUseDefault(valString, def)
     }
-
     /**
      * Convenience function for retrieving a single secure settings value as a `long`. Note that
      * internally setting values are always stored as strings; this function converts the string to
@@ -265,7 +248,6 @@ interface SettingsProxy {
         val valString = getString(name)
         return parseLongOrThrow(name, valString)
     }
-
     /**
      * Convenience function for updating a secure settings value as a long integer. This will either
      * create a new entry in the table if the given name does not exist, or modify the value of the
@@ -279,7 +261,6 @@ interface SettingsProxy {
     fun putLong(name: String, value: Long): Boolean {
         return putString(name, value.toString())
     }
-
     /**
      * Convenience function for retrieving a single secure settings value as a floating point
      * number. Note that internally setting values are always stored as strings; this function
@@ -294,7 +275,6 @@ interface SettingsProxy {
         val v = getString(name)
         return parseFloat(v, def)
     }
-
     /**
      * Convenience function for retrieving a single secure settings value as a float. Note that
      * internally setting values are always stored as strings; this function converts the string to
@@ -313,7 +293,6 @@ interface SettingsProxy {
         val v = getString(name)
         return parseFloatOrThrow(name, v)
     }
-
     /**
      * Convenience function for updating a single settings value as a floating point number. This
      * will either create a new entry in the table if the given name does not exist, or modify the
@@ -327,7 +306,6 @@ interface SettingsProxy {
     fun putFloat(name: String, value: Float): Boolean {
         return putString(name, value.toString())
     }
-
     companion object {
         /** Convert a string to a long, or uses a default if the string is malformed or null */
         @JvmStatic
@@ -341,7 +319,6 @@ interface SettingsProxy {
                 }
             return value
         }
-
         /** Convert a string to a long, or throws an exception if the string is malformed or null */
         @JvmStatic
         @Throws(SettingNotFoundException::class)
@@ -355,7 +332,6 @@ interface SettingsProxy {
                 throw SettingNotFoundException(name)
             }
         }
-
         /** Convert a string to a float, or uses a default if the string is malformed or null */
         @JvmStatic
         fun parseFloat(v: String?, def: Float): Float {
@@ -365,7 +341,6 @@ interface SettingsProxy {
                 def
             }
         }
-
         /**
          * Convert a string to a float, or throws an exception if the string is malformed or null
          */
diff --git a/packages/SystemUI/src/com/android/systemui/util/settings/SettingsProxyExt.kt b/packages/SystemUI/src/com/android/systemui/util/settings/SettingsProxyExt.kt
index 74843685893cfaf35424de495b46bb4fe114d056..d757e33fcc29f3ddc2343d1fb1ba4c7179ffa5c1 100644
--- a/packages/SystemUI/src/com/android/systemui/util/settings/SettingsProxyExt.kt
+++ b/packages/SystemUI/src/com/android/systemui/util/settings/SettingsProxyExt.kt
@@ -39,9 +39,9 @@ object SettingsProxyExt {
                     }
                 }
 
-            names.forEach { name -> registerContentObserverForUser(name, observer, userId) }
+            names.forEach { name -> registerContentObserverForUserSync(name, observer, userId) }
 
-            awaitClose { unregisterContentObserver(observer) }
+            awaitClose { unregisterContentObserverSync(observer) }
         }
     }
 
@@ -57,9 +57,9 @@ object SettingsProxyExt {
                     }
                 }
 
-            names.forEach { name -> registerContentObserver(name, observer) }
+            names.forEach { name -> registerContentObserverSync(name, observer) }
 
-            awaitClose { unregisterContentObserver(observer) }
+            awaitClose { unregisterContentObserverSync(observer) }
         }
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/util/settings/UserSettingsProxy.kt b/packages/SystemUI/src/com/android/systemui/util/settings/UserSettingsProxy.kt
index 2285270b0bc7e42ed3554d17a1b742131ffe5745..ed139434d3bdfe0b85f8197b755fd4bccb2c36b8 100644
--- a/packages/SystemUI/src/com/android/systemui/util/settings/UserSettingsProxy.kt
+++ b/packages/SystemUI/src/com/android/systemui/util/settings/UserSettingsProxy.kt
@@ -41,10 +41,8 @@ import com.android.systemui.util.settings.SettingsProxy.Companion.parseLongOrUse
  * instances, unifying setting related actions in one place.
  */
 interface UserSettingsProxy : SettingsProxy {
-
     /** Returns that [UserTracker] this instance was constructed with. */
     val userTracker: UserTracker
-
     /** Returns the user id for the associated [ContentResolver]. */
     var userId: Int
         get() = getContentResolver().userId
@@ -53,7 +51,6 @@ interface UserSettingsProxy : SettingsProxy {
                 "userId cannot be set in interface, use setter from an implementation instead."
             )
         }
-
     /**
      * Returns the actual current user handle when querying with the current user. Otherwise,
      * returns the passed in user id.
@@ -63,63 +60,57 @@ interface UserSettingsProxy : SettingsProxy {
             userHandle
         } else userTracker.userId
     }
-
-    override fun registerContentObserver(uri: Uri, settingsObserver: ContentObserver) {
-        registerContentObserverForUser(uri, settingsObserver, userId)
+    override fun registerContentObserverSync(uri: Uri, settingsObserver: ContentObserver) {
+        registerContentObserverForUserSync(uri, settingsObserver, userId)
     }
-
     /** Convenience wrapper around [ContentResolver.registerContentObserver].' */
-    override fun registerContentObserver(
+    override fun registerContentObserverSync(
         uri: Uri,
         notifyForDescendants: Boolean,
         settingsObserver: ContentObserver
     ) {
-        registerContentObserverForUser(uri, notifyForDescendants, settingsObserver, userId)
+        registerContentObserverForUserSync(uri, notifyForDescendants, settingsObserver, userId)
     }
-
     /**
      * Convenience wrapper around [ContentResolver.registerContentObserver]
      *
      * Implicitly calls [getUriFor] on the passed in name.
      */
-    fun registerContentObserverForUser(
+    fun registerContentObserverForUserSync(
         name: String,
         settingsObserver: ContentObserver,
         userHandle: Int
     ) {
-        registerContentObserverForUser(getUriFor(name), settingsObserver, userHandle)
+        registerContentObserverForUserSync(getUriFor(name), settingsObserver, userHandle)
     }
-
     /** Convenience wrapper around [ContentResolver.registerContentObserver] */
-    fun registerContentObserverForUser(
+    fun registerContentObserverForUserSync(
         uri: Uri,
         settingsObserver: ContentObserver,
         userHandle: Int
     ) {
-        registerContentObserverForUser(uri, false, settingsObserver, userHandle)
+        registerContentObserverForUserSync(uri, false, settingsObserver, userHandle)
     }
-
     /**
      * Convenience wrapper around [ContentResolver.registerContentObserver]
      *
      * Implicitly calls [getUriFor] on the passed in name.
      */
-    fun registerContentObserverForUser(
+    fun registerContentObserverForUserSync(
         name: String,
         notifyForDescendants: Boolean,
         settingsObserver: ContentObserver,
         userHandle: Int
     ) {
-        registerContentObserverForUser(
+        registerContentObserverForUserSync(
             getUriFor(name),
             notifyForDescendants,
             settingsObserver,
             userHandle
         )
     }
-
     /** Convenience wrapper around [ContentResolver.registerContentObserver] */
-    fun registerContentObserverForUser(
+    fun registerContentObserverForUserSync(
         uri: Uri,
         notifyForDescendants: Boolean,
         settingsObserver: ContentObserver,
@@ -136,7 +127,6 @@ interface UserSettingsProxy : SettingsProxy {
             Unit
         }
     }
-
     /**
      * Look up a name in the database.
      *
@@ -146,10 +136,8 @@ interface UserSettingsProxy : SettingsProxy {
     override fun getString(name: String): String {
         return getStringForUser(name, userId)
     }
-
     /** See [getString]. */
     fun getStringForUser(name: String, userHandle: Int): String
-
     /**
      * Store a name/value pair into the database. Values written by this method will be overridden
      * if a restore happens in the future.
@@ -162,10 +150,8 @@ interface UserSettingsProxy : SettingsProxy {
     override fun putString(name: String, value: String): Boolean {
         return putStringForUser(name, value, userId)
     }
-
     /** Similar implementation to [putString] for the specified [userHandle]. */
     fun putStringForUser(name: String, value: String, userHandle: Int): Boolean
-
     /** Similar implementation to [putString] for the specified [userHandle]. */
     fun putStringForUser(
         name: String,
@@ -175,11 +161,9 @@ interface UserSettingsProxy : SettingsProxy {
         @UserIdInt userHandle: Int,
         overrideableByRestore: Boolean
     ): Boolean
-
     override fun getInt(name: String, def: Int): Int {
         return getIntForUser(name, def, userId)
     }
-
     /** Similar implementation to [getInt] for the specified [userHandle]. */
     fun getIntForUser(name: String, def: Int, userHandle: Int): Int {
         val v = getStringForUser(name, userHandle)
@@ -189,10 +173,8 @@ interface UserSettingsProxy : SettingsProxy {
             def
         }
     }
-
     @Throws(SettingNotFoundException::class)
     override fun getInt(name: String) = getIntForUser(name, userId)
-
     /** Similar implementation to [getInt] for the specified [userHandle]. */
     @Throws(SettingNotFoundException::class)
     fun getIntForUser(name: String, userHandle: Int): Int {
@@ -203,66 +185,52 @@ interface UserSettingsProxy : SettingsProxy {
             throw SettingNotFoundException(name)
         }
     }
-
     override fun putInt(name: String, value: Int) = putIntForUser(name, value, userId)
-
     /** Similar implementation to [getInt] for the specified [userHandle]. */
     fun putIntForUser(name: String, value: Int, userHandle: Int) =
         putStringForUser(name, value.toString(), userHandle)
-
     override fun getBool(name: String, def: Boolean) = getBoolForUser(name, def, userId)
-
     /** Similar implementation to [getBool] for the specified [userHandle]. */
     fun getBoolForUser(name: String, def: Boolean, userHandle: Int) =
         getIntForUser(name, if (def) 1 else 0, userHandle) != 0
-
     @Throws(SettingNotFoundException::class)
     override fun getBool(name: String) = getBoolForUser(name, userId)
-
     /** Similar implementation to [getBool] for the specified [userHandle]. */
     @Throws(SettingNotFoundException::class)
     fun getBoolForUser(name: String, userHandle: Int): Boolean {
         return getIntForUser(name, userHandle) != 0
     }
-
     override fun putBool(name: String, value: Boolean): Boolean {
         return putBoolForUser(name, value, userId)
     }
-
     /** Similar implementation to [putBool] for the specified [userHandle]. */
     fun putBoolForUser(name: String, value: Boolean, userHandle: Int) =
         putIntForUser(name, if (value) 1 else 0, userHandle)
-
     /** Similar implementation to [getLong] for the specified [userHandle]. */
     fun getLongForUser(name: String, def: Long, userHandle: Int): Long {
         val valString = getStringForUser(name, userHandle)
         return parseLongOrUseDefault(valString, def)
     }
-
     /** Similar implementation to [getLong] for the specified [userHandle]. */
     @Throws(SettingNotFoundException::class)
     fun getLongForUser(name: String, userHandle: Int): Long {
         val valString = getStringForUser(name, userHandle)
         return parseLongOrThrow(name, valString)
     }
-
     /** Similar implementation to [putLong] for the specified [userHandle]. */
     fun putLongForUser(name: String, value: Long, userHandle: Int) =
         putStringForUser(name, value.toString(), userHandle)
-
     /** Similar implementation to [getFloat] for the specified [userHandle]. */
     fun getFloatForUser(name: String, def: Float, userHandle: Int): Float {
         val v = getStringForUser(name, userHandle)
         return parseFloat(v, def)
     }
-
     /** Similar implementation to [getFloat] for the specified [userHandle]. */
     @Throws(SettingNotFoundException::class)
     fun getFloatForUser(name: String, userHandle: Int): Float {
         val v = getStringForUser(name, userHandle)
         return parseFloatOrThrow(name, v)
     }
-
     /** Similar implementation to [putFloat] for the specified [userHandle]. */
     fun putFloatForUser(name: String, value: Float, userHandle: Int) =
         putStringForUser(name, value.toString(), userHandle)
diff --git a/packages/SystemUI/src/com/android/systemui/wallet/controller/QuickAccessWalletController.java b/packages/SystemUI/src/com/android/systemui/wallet/controller/QuickAccessWalletController.java
index ff1841819dea2fca158fa57290518331377177f4..1d32a4fd69d61e0ea9959a2495bfc2d009b72c59 100644
--- a/packages/SystemUI/src/com/android/systemui/wallet/controller/QuickAccessWalletController.java
+++ b/packages/SystemUI/src/com/android/systemui/wallet/controller/QuickAccessWalletController.java
@@ -149,12 +149,12 @@ public class QuickAccessWalletController {
             if (event == WALLET_PREFERENCE_CHANGE && mWalletPreferenceObserver != null) {
                 mWalletPreferenceChangeEvents--;
                 if (mWalletPreferenceChangeEvents == 0) {
-                    mSecureSettings.unregisterContentObserver(mWalletPreferenceObserver);
+                    mSecureSettings.unregisterContentObserverSync(mWalletPreferenceObserver);
                 }
             } else if (event == DEFAULT_PAYMENT_APP_CHANGE && mDefaultPaymentAppObserver != null) {
                 mDefaultPaymentAppChangeEvents--;
                 if (mDefaultPaymentAppChangeEvents == 0) {
-                    mSecureSettings.unregisterContentObserver(mDefaultPaymentAppObserver);
+                    mSecureSettings.unregisterContentObserverSync(mDefaultPaymentAppObserver);
                 }
             } else if (event == DEFAULT_WALLET_APP_CHANGE && mDefaultWalletAppObserver != null) {
                 mDefaultWalletAppChangeEvents--;
@@ -312,7 +312,7 @@ public class QuickAccessWalletController {
                 }
             };
 
-            mSecureSettings.registerContentObserverForUser(
+            mSecureSettings.registerContentObserverForUserSync(
                     Settings.Secure.NFC_PAYMENT_DEFAULT_COMPONENT,
                     false /* notifyForDescendants */,
                     mDefaultPaymentAppObserver,
@@ -351,7 +351,7 @@ public class QuickAccessWalletController {
                 }
             };
 
-            mSecureSettings.registerContentObserverForUser(
+            mSecureSettings.registerContentObserverForUserSync(
                     QuickAccessWalletClientImpl.SETTING_KEY,
                     false /* notifyForDescendants */,
                     mWalletPreferenceObserver,
diff --git a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardClockSwitchControllerTest.java b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardClockSwitchControllerTest.java
index 99b5a4b631a7c10253c91cb33e078fde7f3403df..cfa74f0ef4322838ebab49ce6c10cb677f19d9b9 100644
--- a/packages/SystemUI/tests/src/com/android/keyguard/KeyguardClockSwitchControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/keyguard/KeyguardClockSwitchControllerTest.java
@@ -181,7 +181,7 @@ public class KeyguardClockSwitchControllerTest extends KeyguardClockSwitchContro
                 ArgumentCaptor.forClass(ContentObserver.class);
         mController.init();
         mExecutor.runAllReady();
-        verify(mSecureSettings).registerContentObserverForUser(
+        verify(mSecureSettings).registerContentObserverForUserSync(
                 eq(Settings.Secure.LOCKSCREEN_USE_DOUBLE_LINE_CLOCK),
                     anyBoolean(), observerCaptor.capture(), eq(UserHandle.USER_ALL));
         ContentObserver observer = observerCaptor.getValue();
@@ -247,7 +247,7 @@ public class KeyguardClockSwitchControllerTest extends KeyguardClockSwitchContro
                 ArgumentCaptor.forClass(ContentObserver.class);
         mController.init();
         mExecutor.runAllReady();
-        verify(mSecureSettings).registerContentObserverForUser(
+        verify(mSecureSettings).registerContentObserverForUserSync(
                 eq(Settings.Secure.LOCK_SCREEN_WEATHER_ENABLED), anyBoolean(),
                     observerCaptor.capture(), eq(UserHandle.USER_ALL));
         ContentObserver observer = observerCaptor.getValue();
diff --git a/packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationSettingsTest.java b/packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationSettingsTest.java
index 92b06ba3f714b4d7f5af85c72102fb0e4a080f72..138fed298ef14a78859c378bef941365f7cccd8e 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationSettingsTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationSettingsTest.java
@@ -393,7 +393,7 @@ public class WindowMagnificationSettingsTest extends SysuiTestCase {
 
         mWindowMagnificationSettings.showSettingPanel();
 
-        verify(mSecureSettings).registerContentObserverForUser(
+        verify(mSecureSettings).registerContentObserverForUserSync(
                 eq(ACCESSIBILITY_MAGNIFICATION_CAPABILITY),
                 any(ContentObserver.class),
                 eq(UserHandle.USER_CURRENT));
@@ -408,7 +408,7 @@ public class WindowMagnificationSettingsTest extends SysuiTestCase {
         mWindowMagnificationSettings.showSettingPanel();
         mWindowMagnificationSettings.hideSettingPanel();
 
-        verify(mSecureSettings).unregisterContentObserver(any(ContentObserver.class));
+        verify(mSecureSettings).unregisterContentObserverSync(any(ContentObserver.class));
     }
 
     @Test
diff --git a/packages/SystemUI/tests/src/com/android/systemui/biometrics/data/repository/FaceSettingsRepositoryImplTest.kt b/packages/SystemUI/tests/src/com/android/systemui/biometrics/data/repository/FaceSettingsRepositoryImplTest.kt
index 9ba56d27fdf3deff29f156e9621b8018a1b3df5c..63919865d8abafdb6f1e0ba9ff98dc6d80a528c8 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/biometrics/data/repository/FaceSettingsRepositoryImplTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/biometrics/data/repository/FaceSettingsRepositoryImplTest.kt
@@ -82,7 +82,12 @@ class FaceSettingsRepositoryImplTest : SysuiTestCase() {
             val keys =
                 captureMany<String> {
                     verify(secureSettings)
-                        .registerContentObserverForUser(capture(), anyBoolean(), any(), eq(USER_ID))
+                        .registerContentObserverForUserSync(
+                            capture(),
+                            anyBoolean(),
+                            any(),
+                            eq(USER_ID)
+                        )
                 }
 
             assertThat(keys).containsExactly(FACE_UNLOCK_ALWAYS_REQUIRE_CONFIRMATION)
@@ -102,7 +107,7 @@ class FaceSettingsRepositoryImplTest : SysuiTestCase() {
             val observer =
                 withArgCaptor<ContentObserver> {
                     verify(secureSettings)
-                        .registerContentObserverForUser(
+                        .registerContentObserverForUserSync(
                             eq(setting),
                             anyBoolean(),
                             capture(),
diff --git a/packages/SystemUI/tests/src/com/android/systemui/controls/settings/ControlsSettingsDialogManagerImplTest.kt b/packages/SystemUI/tests/src/com/android/systemui/controls/settings/ControlsSettingsDialogManagerImplTest.kt
index 590989d3a9875e768602d34a58f42a9bcf8058d7..154c3734558d8999316f1ef7445b6c6df771c201 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/controls/settings/ControlsSettingsDialogManagerImplTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/controls/settings/ControlsSettingsDialogManagerImplTest.kt
@@ -332,7 +332,7 @@ class ControlsSettingsDialogManagerImplTest : SysuiTestCase() {
     }
 
     private fun attachRepositoryToSettings() {
-        secureSettings.registerContentObserver(
+        secureSettings.registerContentObserverSync(
             SETTING_SHOW,
             object : ContentObserver(null) {
                 override fun onChange(selfChange: Boolean) {
@@ -343,7 +343,7 @@ class ControlsSettingsDialogManagerImplTest : SysuiTestCase() {
             }
         )
 
-        secureSettings.registerContentObserver(
+        secureSettings.registerContentObserverSync(
             SETTING_ACTION,
             object : ContentObserver(null) {
                 override fun onChange(selfChange: Boolean) {
diff --git a/packages/SystemUI/tests/src/com/android/systemui/media/controls/ui/controller/MediaCarouselControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/media/controls/ui/controller/MediaCarouselControllerTest.kt
index 3ca5b421a7a433f4a5cce8471741cefd56d1d7e4..f7b3f2ea2804c61001a012f1618557a7a0798e41 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/media/controls/ui/controller/MediaCarouselControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/media/controls/ui/controller/MediaCarouselControllerTest.kt
@@ -196,7 +196,7 @@ class MediaCarouselControllerTest : SysuiTestCase() {
         whenever(mediaFlags.isPersistentSsCardEnabled()).thenReturn(false)
         MediaPlayerData.clear()
         verify(globalSettings)
-            .registerContentObserver(
+            .registerContentObserverSync(
                 eq(Settings.Global.getUriFor(Settings.Global.ANIMATOR_DURATION_SCALE)),
                 capture(settingsObserverCaptor)
             )
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/QSTileHostTest.java b/packages/SystemUI/tests/src/com/android/systemui/qs/QSTileHostTest.java
index 5e14b1a60ddbae7a336ba865d53ce8b18a0aa1ca..820c3de50d75687cedf0eeb49ed59b107c84e6df 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/QSTileHostTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/QSTileHostTest.java
@@ -175,7 +175,7 @@ public class QSTileHostTest extends SysuiTestCase {
                 mTileLifecycleManagerFactory, mUserFileManager, mQSPipelineFlagsRepository);
         mMainExecutor.runAllReady();
 
-        mSecureSettings.registerContentObserverForUser(SETTING, new ContentObserver(null) {
+        mSecureSettings.registerContentObserverForUserSync(SETTING, new ContentObserver(null) {
             @Override
             public void onChange(boolean selfChange) {
                 super.onChange(selfChange);
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/coordinator/PreparationCoordinatorTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/coordinator/PreparationCoordinatorTest.java
index 80127682be02c492215ed0af10af687ce842dd46..dc9c22f566bf13dbb7f1854dc05f99a9220e1f24 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/coordinator/PreparationCoordinatorTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/coordinator/PreparationCoordinatorTest.java
@@ -320,7 +320,7 @@ public class PreparationCoordinatorTest extends SysuiTestCase {
                 .thenReturn(1);
         ArgumentCaptor<ContentObserver> contentObserverCaptor = ArgumentCaptor.forClass(
                 ContentObserver.class);
-        verify(mSecureSettings).registerContentObserverForUser(eq(SHOW_NOTIFICATION_SNOOZE),
+        verify(mSecureSettings).registerContentObserverForUserSync(eq(SHOW_NOTIFICATION_SNOOZE),
                 contentObserverCaptor.capture(), anyInt());
         ContentObserver contentObserver = contentObserverCaptor.getValue();
         contentObserver.onChange(false);
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/inflation/NotifUiAdjustmentProviderTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/inflation/NotifUiAdjustmentProviderTest.kt
index 7943872558c35e76a126ce3280de085ee5464354..2f77b33c96cbe78eb86f9de4bcf756fcb439da7f 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/inflation/NotifUiAdjustmentProviderTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/inflation/NotifUiAdjustmentProviderTest.kt
@@ -69,22 +69,21 @@ class NotifUiAdjustmentProviderTest : SysuiTestCase() {
     private val groupMembershipManager: GroupMembershipManager = mock()
 
     private val section = NotifSection(mock(), 0)
-    private val entry = NotificationEntryBuilder()
-        .setSection(section)
-        .setParent(GroupEntry.ROOT_ENTRY)
-        .build()
+    private val entry =
+        NotificationEntryBuilder().setSection(section).setParent(GroupEntry.ROOT_ENTRY).build()
 
     private lateinit var contentObserver: ContentObserver
 
-    private val adjustmentProvider = NotifUiAdjustmentProvider(
-        handler,
-        secureSettings,
-        lockscreenUserManager,
-        sensitiveNotifProtectionController,
-        sectionStyleProvider,
-        userTracker,
-        groupMembershipManager,
-    )
+    private val adjustmentProvider =
+        NotifUiAdjustmentProvider(
+            handler,
+            secureSettings,
+            lockscreenUserManager,
+            sensitiveNotifProtectionController,
+            sectionStyleProvider,
+            userTracker,
+            groupMembershipManager,
+        )
 
     @Before
     fun setup() {
@@ -92,9 +91,8 @@ class NotifUiAdjustmentProviderTest : SysuiTestCase() {
         adjustmentProvider.addDirtyListener(dirtyListener)
         verify(secureSettings).getIntForUser(eq(SHOW_NOTIFICATION_SNOOZE), any(), any())
         contentObserver = withArgCaptor {
-            verify(secureSettings).registerContentObserverForUser(
-                eq(SHOW_NOTIFICATION_SNOOZE), capture(), any()
-            )
+            verify(secureSettings)
+                .registerContentObserverForUserSync(eq(SHOW_NOTIFICATION_SNOOZE), capture(), any())
         }
         verifyNoMoreInteractions(secureSettings, dirtyListener)
     }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/NotificationSettingsControllerTest.kt b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/NotificationSettingsControllerTest.kt
index 352b79f50b902adf8caf5fc5ae33a9440f0bc3b1..310fa67a3c6b247ac378b2f5fa07548f24409289 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/NotificationSettingsControllerTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/row/NotificationSettingsControllerTest.kt
@@ -102,6 +102,7 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
         verify(userTracker).addCallback(any(), any())
         verify(dumpManager).registerNormalDumpable(anyString(), eq(controller))
     }
+
     @Test
     fun updateContentObserverRegistration_onUserChange_noSettingsListeners() {
         verify(userTracker).addCallback(capture(userTrackerCallbackCaptor), any())
@@ -112,10 +113,11 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
         userCallback.onUserChanged(userId, context)
 
         // Validate: Nothing to do, since we aren't monitoring settings
-        verify(secureSettings, never()).unregisterContentObserver(any())
+        verify(secureSettings, never()).unregisterContentObserverSync(any())
         verify(secureSettings, never())
-            .registerContentObserverForUser(any(Uri::class.java), anyBoolean(), any(), anyInt())
+            .registerContentObserverForUserSync(any(Uri::class.java), anyBoolean(), any(), anyInt())
     }
+
     @Test
     fun updateContentObserverRegistration_onUserChange_withSettingsListeners() {
         // When: someone is listening to a setting
@@ -129,9 +131,9 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
         userCallback.onUserChanged(userId, context)
 
         // Validate: The tracker is unregistered and re-registered with the new user
-        verify(secureSettings).unregisterContentObserver(any())
+        verify(secureSettings).unregisterContentObserverSync(any())
         verify(secureSettings)
-            .registerContentObserverForUser(eq(settingUri1), eq(false), any(), eq(userId))
+            .registerContentObserverForUserSync(eq(settingUri1), eq(false), any(), eq(userId))
     }
 
     @Test
@@ -140,7 +142,7 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
         verifyZeroInteractions(secureSettings)
         testableLooper.processAllMessages()
         verify(secureSettings)
-            .registerContentObserverForUser(
+            .registerContentObserverForUserSync(
                 eq(settingUri1),
                 eq(false),
                 any(),
@@ -149,7 +151,7 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
 
         controller.addCallback(settingUri1, Mockito.mock(Listener::class.java))
         verify(secureSettings)
-            .registerContentObserverForUser(any(Uri::class.java), anyBoolean(), any(), anyInt())
+            .registerContentObserverForUserSync(any(Uri::class.java), anyBoolean(), any(), anyInt())
     }
 
     @Test
@@ -158,7 +160,7 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
         verifyZeroInteractions(secureSettings)
         testableLooper.processAllMessages()
         verify(secureSettings)
-            .registerContentObserverForUser(
+            .registerContentObserverForUserSync(
                 eq(settingUri1),
                 eq(false),
                 any(),
@@ -170,7 +172,7 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
         verifyNoMoreInteractions(secureSettings)
         testableLooper.processAllMessages()
         verify(secureSettings)
-            .registerContentObserverForUser(
+            .registerContentObserverForUserSync(
                 eq(settingUri2),
                 eq(false),
                 any(),
@@ -186,7 +188,7 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
         verifyZeroInteractions(secureSettings)
         testableLooper.processAllMessages()
         verify(secureSettings)
-            .registerContentObserverForUser(
+            .registerContentObserverForUserSync(
                 eq(settingUri1),
                 eq(false),
                 any(),
@@ -198,18 +200,18 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
         verifyNoMoreInteractions(secureSettings)
         testableLooper.processAllMessages()
         verify(secureSettings)
-            .registerContentObserverForUser(eq(settingUri2), anyBoolean(), any(), anyInt())
+            .registerContentObserverForUserSync(eq(settingUri2), anyBoolean(), any(), anyInt())
         clearInvocations(secureSettings)
 
         controller.removeCallback(settingUri2, listenerSetting2)
         testableLooper.processAllMessages()
-        verify(secureSettings, never()).unregisterContentObserver(any())
+        verify(secureSettings, never()).unregisterContentObserverSync(any())
         clearInvocations(secureSettings)
 
         controller.removeCallback(settingUri1, listenerSetting1)
         verifyNoMoreInteractions(secureSettings)
         testableLooper.processAllMessages()
-        verify(secureSettings).unregisterContentObserver(any())
+        verify(secureSettings).unregisterContentObserverSync(any())
     }
 
     @Test
@@ -253,7 +255,7 @@ class NotificationSettingsControllerTest : SysuiTestCase() {
         testableLooper.processAllMessages()
 
         verify(secureSettings)
-            .registerContentObserverForUser(
+            .registerContentObserverForUserSync(
                 any(Uri::class.java),
                 anyBoolean(),
                 capture(settingsObserverCaptor),
diff --git a/packages/SystemUI/tests/src/com/android/systemui/theme/ThemeOverlayControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/theme/ThemeOverlayControllerTest.java
index 5ad88ad1f47c62267965e70de07d25b9503a5ba7..d2c1dd50821eb17f08e6e653c667c22ac7d381c4 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/theme/ThemeOverlayControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/theme/ThemeOverlayControllerTest.java
@@ -202,7 +202,7 @@ public class ThemeOverlayControllerTest extends SysuiTestCase {
         verify(mWakefulnessLifecycle).addObserver(mWakefulnessLifecycleObserver.capture());
         verify(mDumpManager).registerDumpable(any(), any());
         verify(mDeviceProvisionedController).addCallback(mDeviceProvisionedListener.capture());
-        verify(mSecureSettings).registerContentObserverForUser(
+        verify(mSecureSettings).registerContentObserverForUserSync(
                 eq(Settings.Secure.THEME_CUSTOMIZATION_OVERLAY_PACKAGES),
                 eq(false), mSettingsObserver.capture(), eq(UserHandle.USER_ALL)
         );
diff --git a/packages/SystemUI/tests/src/com/android/systemui/util/settings/FakeSettingsTest.java b/packages/SystemUI/tests/src/com/android/systemui/util/settings/FakeSettingsTest.java
index 99f6303ad73d89ace8bd07a90f8f144937009361..25a44e3cc80954542c7dfd40ed5efee3949e0a75 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/util/settings/FakeSettingsTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/util/settings/FakeSettingsTest.java
@@ -83,7 +83,7 @@ public class FakeSettingsTest extends SysuiTestCase {
 
     @Test
     public void testRegisterContentObserver() {
-        mFakeSettings.registerContentObserver("cat", mContentObserver);
+        mFakeSettings.registerContentObserverSync("cat", mContentObserver);
 
         mFakeSettings.putString("cat", "hat");
 
@@ -93,7 +93,7 @@ public class FakeSettingsTest extends SysuiTestCase {
 
     @Test
     public void testRegisterContentObserverAllUsers() {
-        mFakeSettings.registerContentObserverForUser(
+        mFakeSettings.registerContentObserverForUserSync(
                 mFakeSettings.getUriFor("cat"), false, mContentObserver, UserHandle.USER_ALL);
 
         mFakeSettings.putString("cat", "hat");
@@ -104,8 +104,8 @@ public class FakeSettingsTest extends SysuiTestCase {
 
     @Test
     public void testUnregisterContentObserver() {
-        mFakeSettings.registerContentObserver("cat", mContentObserver);
-        mFakeSettings.unregisterContentObserver(mContentObserver);
+        mFakeSettings.registerContentObserverSync("cat", mContentObserver);
+        mFakeSettings.unregisterContentObserverSync(mContentObserver);
 
         mFakeSettings.putString("cat", "hat");
 
@@ -115,9 +115,9 @@ public class FakeSettingsTest extends SysuiTestCase {
 
     @Test
     public void testUnregisterContentObserverAllUsers() {
-        mFakeSettings.registerContentObserverForUser(
+        mFakeSettings.registerContentObserverForUserSync(
                 mFakeSettings.getUriFor("cat"), false, mContentObserver, UserHandle.USER_ALL);
-        mFakeSettings.unregisterContentObserver(mContentObserver);
+        mFakeSettings.unregisterContentObserverSync(mContentObserver);
 
         mFakeSettings.putString("cat", "hat");
 
@@ -128,7 +128,7 @@ public class FakeSettingsTest extends SysuiTestCase {
     @Test
     public void testContentObserverDispatchCorrectUser() {
         int user = 10;
-        mFakeSettings.registerContentObserverForUser(
+        mFakeSettings.registerContentObserverForUserSync(
                 mFakeSettings.getUriFor("cat"), false, mContentObserver, UserHandle.USER_ALL
         );
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/util/settings/SettingsProxyTest.kt b/packages/SystemUI/tests/src/com/android/systemui/util/settings/SettingsProxyTest.kt
index ab95707046d9b4c41316193f898f9e3dc8a735e2..eb11e383d51942520f0f3e589071f4e37f198ed5 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/util/settings/SettingsProxyTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/util/settings/SettingsProxyTest.kt
@@ -52,14 +52,14 @@ class SettingsProxyTest : SysuiTestCase() {
 
     @Test
     fun registerContentObserver_inputString_success() {
-        mSettings.registerContentObserver(TEST_SETTING, mContentObserver)
+        mSettings.registerContentObserverSync(TEST_SETTING, mContentObserver)
         verify(mSettings.getContentResolver())
             .registerContentObserver(eq(TEST_SETTING_URI), eq(false), eq(mContentObserver))
     }
 
     @Test
     fun registerContentObserver_inputString_notifyForDescendants_true() {
-        mSettings.registerContentObserver(
+        mSettings.registerContentObserverSync(
             TEST_SETTING,
             notifyForDescendants = true,
             mContentObserver
@@ -70,14 +70,14 @@ class SettingsProxyTest : SysuiTestCase() {
 
     @Test
     fun registerContentObserver_inputUri_success() {
-        mSettings.registerContentObserver(TEST_SETTING_URI, mContentObserver)
+        mSettings.registerContentObserverSync(TEST_SETTING_URI, mContentObserver)
         verify(mSettings.getContentResolver())
             .registerContentObserver(eq(TEST_SETTING_URI), eq(false), eq(mContentObserver))
     }
 
     @Test
     fun registerContentObserver_inputUri_notifyForDescendants_true() {
-        mSettings.registerContentObserver(
+        mSettings.registerContentObserverSync(
             TEST_SETTING_URI,
             notifyForDescendants = true,
             mContentObserver
@@ -88,7 +88,7 @@ class SettingsProxyTest : SysuiTestCase() {
 
     @Test
     fun unregisterContentObserver() {
-        mSettings.unregisterContentObserver(mContentObserver)
+        mSettings.unregisterContentObserverSync(mContentObserver)
         verify(mSettings.getContentResolver()).unregisterContentObserver(eq(mContentObserver))
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/util/settings/UserSettingsProxyTest.kt b/packages/SystemUI/tests/src/com/android/systemui/util/settings/UserSettingsProxyTest.kt
index 56328b9336027b6e1dc8c85727a0a97ef766c5d7..38469ee7955d5d518be68dabdfd11e45af673ac1 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/util/settings/UserSettingsProxyTest.kt
+++ b/packages/SystemUI/tests/src/com/android/systemui/util/settings/UserSettingsProxyTest.kt
@@ -58,7 +58,7 @@ class UserSettingsProxyTest : SysuiTestCase() {
 
     @Test
     fun registerContentObserverForUser_inputString_success() {
-        mSettings.registerContentObserverForUser(
+        mSettings.registerContentObserverForUserSync(
             TEST_SETTING,
             mContentObserver,
             mUserTracker.userId
@@ -74,7 +74,7 @@ class UserSettingsProxyTest : SysuiTestCase() {
 
     @Test
     fun registerContentObserverForUser_inputString_notifyForDescendants_true() {
-        mSettings.registerContentObserverForUser(
+        mSettings.registerContentObserverForUserSync(
             TEST_SETTING,
             notifyForDescendants = true,
             mContentObserver,
@@ -91,7 +91,7 @@ class UserSettingsProxyTest : SysuiTestCase() {
 
     @Test
     fun registerContentObserverForUser_inputUri_success() {
-        mSettings.registerContentObserverForUser(
+        mSettings.registerContentObserverForUserSync(
             TEST_SETTING_URI,
             mContentObserver,
             mUserTracker.userId
@@ -107,7 +107,7 @@ class UserSettingsProxyTest : SysuiTestCase() {
 
     @Test
     fun registerContentObserverForUser_inputUri_notifyForDescendants_true() {
-        mSettings.registerContentObserverForUser(
+        mSettings.registerContentObserverForUserSync(
             TEST_SETTING_URI,
             notifyForDescendants = true,
             mContentObserver,
@@ -124,14 +124,14 @@ class UserSettingsProxyTest : SysuiTestCase() {
 
     @Test
     fun registerContentObserver_inputUri_success() {
-        mSettings.registerContentObserver(TEST_SETTING_URI, mContentObserver)
+        mSettings.registerContentObserverSync(TEST_SETTING_URI, mContentObserver)
         verify(mSettings.getContentResolver())
             .registerContentObserver(eq(TEST_SETTING_URI), eq(false), eq(mContentObserver), eq(0))
     }
 
     @Test
     fun registerContentObserver_inputUri_notifyForDescendants_true() {
-        mSettings.registerContentObserver(
+        mSettings.registerContentObserverSync(
             TEST_SETTING_URI,
             notifyForDescendants = true,
             mContentObserver
diff --git a/packages/SystemUI/tests/utils/src/com/android/systemui/util/settings/FakeGlobalSettings.java b/packages/SystemUI/tests/utils/src/com/android/systemui/util/settings/FakeGlobalSettings.java
index beabaf5f59545d695d04f2904cba999ea0e22e34..3a70cdfc42edea373a10da9f59fef5dd22907999 100644
--- a/packages/SystemUI/tests/utils/src/com/android/systemui/util/settings/FakeGlobalSettings.java
+++ b/packages/SystemUI/tests/utils/src/com/android/systemui/util/settings/FakeGlobalSettings.java
@@ -44,7 +44,7 @@ public class FakeGlobalSettings implements GlobalSettings {
     }
 
     @Override
-    public void registerContentObserver(Uri uri, boolean notifyDescendants,
+    public void registerContentObserverSync(Uri uri, boolean notifyDescendants,
             ContentObserver settingsObserver) {
         List<ContentObserver> observers;
         mContentObserversAllUsers.putIfAbsent(uri.toString(), new ArrayList<>());
@@ -53,7 +53,7 @@ public class FakeGlobalSettings implements GlobalSettings {
     }
 
     @Override
-    public void unregisterContentObserver(ContentObserver settingsObserver) {
+    public void unregisterContentObserverSync(ContentObserver settingsObserver) {
         for (Map.Entry<String, List<ContentObserver>> entry :
                 mContentObserversAllUsers.entrySet()) {
             entry.getValue().remove(settingsObserver);
diff --git a/packages/SystemUI/tests/utils/src/com/android/systemui/util/settings/FakeSettings.java b/packages/SystemUI/tests/utils/src/com/android/systemui/util/settings/FakeSettings.java
index a49188687100df0370bffc0e993ea81341af53c4..cd219ec127fc4cc390103420765406d78474fe28 100644
--- a/packages/SystemUI/tests/utils/src/com/android/systemui/util/settings/FakeSettings.java
+++ b/packages/SystemUI/tests/utils/src/com/android/systemui/util/settings/FakeSettings.java
@@ -66,7 +66,7 @@ public class FakeSettings implements SecureSettings, SystemSettings {
     }
 
     @Override
-    public void registerContentObserverForUser(Uri uri, boolean notifyDescendants,
+    public void registerContentObserverForUserSync(Uri uri, boolean notifyDescendants,
             ContentObserver settingsObserver, int userHandle) {
         List<ContentObserver> observers;
         if (userHandle == UserHandle.USER_ALL) {
@@ -81,7 +81,7 @@ public class FakeSettings implements SecureSettings, SystemSettings {
     }
 
     @Override
-    public void unregisterContentObserver(ContentObserver settingsObserver) {
+    public void unregisterContentObserverSync(ContentObserver settingsObserver) {
         for (SettingsKey key : mContentObservers.keySet()) {
             List<ContentObserver> observers = mContentObservers.get(key);
             observers.remove(settingsObserver);