Move anomaly code to BatteryTipUtils

Then we could reuse it across settings.

Bug: 74529048
Test: robo test that cover each components still pass
Change-Id: Ied0bbc6e6a1dca9628c2c084c3284ffab2f85160

src/com/android/settings/fuelgauge/batterytip/BatteryDatabaseManager.java

@@ -40,6 +40,8 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 
+import androidx.annotation.VisibleForTesting;
+
 /**
  * Database manager for battery data. Now it only contains anomaly data stored in {@link AppInfo}.
  *
@@ -62,6 +64,11 @@ public class BatteryDatabaseManager {
         return sSingleton;
     }
 
+    @VisibleForTesting(otherwise = VisibleForTesting.NONE)
+    public static void setUpForTest(BatteryDatabaseManager batteryDatabaseManager) {
+        sSingleton = batteryDatabaseManager;
+    }
+
     /**
      * Insert an anomaly log to database.
      *