Add database to store anomaly data

1. Refactor HighUsageApp to AppInfo so it could be
reused both in dialog and app restriction
2. Add BatteryDatabaseHelper to store the anomaly log

Bug: 70570352
Test: RunSettingsRoboTests

Change-Id: I900cd9746ff7f1e19bd6f3948463588b7cf72b85

tests/robotests/src/com/android/settings/testutils/DatabaseTestUtils.java

@@ -18,6 +18,7 @@ package com.android.settings.testutils;
 
 import android.content.Context;
 
+import com.android.settings.fuelgauge.batterytip.AnomalyDatabaseHelper;
 import com.android.settings.search.IndexDatabaseHelper;
 import com.android.settings.slices.SlicesDatabaseHelper;
 
@@ -28,6 +29,7 @@ public class DatabaseTestUtils {
     public static void clearDb(Context context) {
         clearSearchDb(context);
         clearSlicesDb(context);
+        clearAnomalyDb(context);
     }
 
     private static void clearSlicesDb(Context context) {
@@ -45,6 +47,21 @@ public class DatabaseTestUtils {
         }
     }
 
+    private static void clearAnomalyDb(Context context) {
+        AnomalyDatabaseHelper helper = AnomalyDatabaseHelper.getInstance(context);
+        helper.close();
+
+        Field instance;
+        Class clazz = AnomalyDatabaseHelper.class;
+        try {
+            instance = clazz.getDeclaredField("sSingleton");
+            instance.setAccessible(true);
+            instance.set(null, null);
+        } catch (Exception e) {
+            throw new RuntimeException();
+        }
+    }
+
     private static void clearSearchDb(Context context) {
         IndexDatabaseHelper helper = IndexDatabaseHelper.getInstance(context);
         helper.close();