8 files declare their use of ContainerFactory

BreakpointManager.php in core/modules/breakpoint/src/BreakpointManager.php
ConfigMapperManager.php in core/modules/config_translation/src/ConfigMapperManager.php
ContextualLinkManager.php in core/lib/Drupal/Core/Menu/ContextualLinkManager.php
DefaultPluginManager.php in core/lib/Drupal/Core/Plugin/DefaultPluginManager.php
LocalActionManager.php in core/lib/Drupal/Core/Menu/LocalActionManager.php
LocalTaskManager.php in core/lib/Drupal/Core/Menu/LocalTaskManager.php
MenuLinkManager.php in core/lib/Drupal/Core/Menu/MenuLinkManager.php
MigrationPluginManager.php in core/modules/migrate/src/Plugin/MigrationPluginManager.php

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