Clear app optimized mode sharedpreferences when Reset all app preferences.

- Clear events when user click Settings > Apps > All apps > top-right button > "Reset app preferences"
- Update AppOptModeSharedPreferencesUtilsTest from robotest to unit test.

Bug: 338965652
Test: atest + manual
Change-Id: Ib0a1bd113ab31fea247e5a5430ab35b252c6e1f5

src/com/android/settings/fuelgauge/BatteryOptimizeUtils.java

@@ -33,6 +33,7 @@ import androidx.annotation.VisibleForTesting;
 
 import com.android.settings.R;
 import com.android.settings.fuelgauge.BatteryOptimizeHistoricalLogEntry.Action;
+import com.android.settings.fuelgauge.batteryusage.AppOptModeSharedPreferencesUtils;
 import com.android.settingslib.datastore.DataChangeReason;
 import com.android.settingslib.fuelgauge.PowerAllowlistBackend;
 
@@ -138,7 +139,8 @@ public class BatteryOptimizeUtils {
     /** Resets optimization mode for all applications. */
     public static void resetAppOptimizationMode(
             Context context, IPackageManager ipm, AppOpsManager aom) {
-        resetAppOptimizationMode(
+        AppOptModeSharedPreferencesUtils.clearAll(context);
+        resetAppOptimizationModeInternal(
                 context,
                 ipm,
                 aom,
@@ -219,7 +221,7 @@ public class BatteryOptimizeUtils {
     }
 
     @VisibleForTesting
-    static void resetAppOptimizationMode(
+    static void resetAppOptimizationModeInternal(
             Context context,
             IPackageManager ipm,
             AppOpsManager aom,

src/com/android/settings/fuelgauge/batteryusage/AppOptModeSharedPreferencesUtils.kt

@@ -41,6 +41,13 @@ object AppOptModeSharedPreferencesUtils {
     fun getAllEvents(context: Context): List<AppOptimizationModeEvent> =
         synchronized(appOptimizationModeLock) { getAppOptModeEventsMap(context).values.toList() }
 
+    /** Removes all app optimization mode events. */
+    @JvmStatic
+    fun clearAll(context: Context) =
+        synchronized(appOptimizationModeLock) {
+            getSharedPreferences(context).edit().clear().apply()
+        }
+
     /** Updates the app optimization mode event data. */
     @JvmStatic
     fun updateAppOptModeExpiration(