8 files declare their use of Connection in Service Container 7.2

DatabaseLockBackend.php in lib/Drupal/Core/Lock/DatabaseLockBackend.php

Contains \Drupal\Core\Lock\DatabaseLockBackend.

DatabaseStorage.php in lib/Drupal/Core/KeyValueStore/DatabaseStorage.php

Contains \Drupal\Core\KeyValueStore\DatabaseStorage.

DatabaseStorageExpirable.php in lib/Drupal/Core/KeyValueStore/DatabaseStorageExpirable.php

Contains \Drupal\Core\KeyValueStore\DatabaseStorageExpirable.

KeyValueDatabaseExpirableFactory.php in lib/Drupal/Core/KeyValueStore/KeyValueDatabaseExpirableFactory.php

Contains \Drupal\Core\KeyValueStore\KeyValueDatabaseExpirableFactory.

KeyValueDatabaseFactory.php in lib/Drupal/Core/KeyValueStore/KeyValueDatabaseFactory.php

Contains \Drupal\Core\KeyValueStore\KeyValueDatabaseFactory.

LegacyBackend.php in src/Flood/LegacyBackend.php

Definition of Drupal\service_container\Flood\LegacyBackend.

LoggerIntegrationTest.php in lib/Drupal/service_container/Tests/LoggerIntegrationTest.php

Contains \Drupal\service_container\Tests\LoggerIntegrationTest.

PersistentDatabaseLockBackend.php in lib/Drupal/Core/Lock/PersistentDatabaseLockBackend.php

Contains \Drupal\Core\Lock\PersistentDatabaseLockBackend.