Mark attention component_name with @TestApi

import android.Manifest;

import android.annotation.Nullable;

import android.annotation.TestApi;

import android.annotation.UserIdInt;

import android.app.ActivityManager;

import android.attention.AttentionManagerInternal;

public class AttentionManagerService extends SystemService {

    private static final String LOG_TAG = "AttentionManagerService";

    /**

     * DeviceConfig flag name, allows a CTS to inject a fake implementation.

     *

     * @hide

     */

    @TestApi

    public static final String COMPONENT_NAME = "component_name";

    /** Default value in absence of {@link DeviceConfig} override. */

    private static final boolean DEFAULT_SERVICE_ENABLED = true;

    /** DeviceConfig flag name, if {@code true}, enables AttentionManagerService features. */

    private static final String SERVICE_ENABLED = "service_enabled";

    /** DeviceConfig flag name, allows a CTS to inject a fake implementation. */

    private static final String COMPONENT_NAME = "component_name";

    private final Context mContext;

    private final PowerManager mPowerManager;

    private final Object mLock;