Issue #2169267 by damiankloip: Replace drupal_cron_run() with a Cron service.

core/core.services.yml

core/includes/common.inc

core/includes/install.core.inc

core/lib/Drupal/Core/Cron.php

core/lib/Drupal/Core/CronInterface.php

core/modules/file/lib/Drupal/file/Tests/DeleteTest.php

...ules/file/lib/Drupal/file/Tests/FileFieldRevisionTest.php

core/modules/locale/locale.module

core/modules/system/lib/Drupal/system/CronController.php

core/modules/system/lib/Drupal/system/Form/CronForm.php

core/modules/system/system.api.php

core/modules/system/system.module

core/modules/user/lib/Drupal/user/Tests/UserPictureTest.php