Update strings for charging optimization mode.

Update the battery settings summary and the charging string on the Battery settings page if charging optimization mode is applied.

Bug: 329020954
Test: atest SettingsRoboTests
Change-Id: Ie906a010d70bcef7fafe235f0287b289ea934705

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

@@ -53,4 +53,20 @@ public interface BatterySettingsFeatureProvider {
     @Nullable
     CharSequence getWirelessChargingRemainingLabel(
             @NonNull Context context, long remainingTimeMs, long currentTimeMs);
+
+    /** Return true if it's in the charging optimization mode. */
+    boolean isChargingOptimizationMode(@NonNull Context context);
+
+    /** Return a charging remaining time label for charging optimization mode. */
+    @Nullable
+    CharSequence getChargingOptimizationRemainingLabel(
+            @NonNull Context context, long chargeRemainingTimeMs, long currentTimeMs);
+
+    /** Return a charge label for charging optimization mode. */
+    @Nullable
+    CharSequence getChargingOptimizationChargeLabel(
+            @NonNull Context context,
+            @NonNull String batteryPercentageString,
+            long chargeRemainingTimeMs,
+            long currentTimeMs);
 }