Merge pull request #17974 from edx/ziafazal/WL-1239

cms/djangoapps/contentstore/signals/handlers.py

cms/djangoapps/contentstore/tests/test_gating.py

cms/djangoapps/contentstore/views/item.py

cms/djangoapps/contentstore/views/tests/test_gating.py

cms/static/js/spec/views/pages/course_outline_spec.js

cms/static/js/views/modals/course_outline_modals.js

cms/static/sass/elements/_modal-window.scss

cms/templates/js/access-editor.underscore

common/test/acceptance/pages/studio/overview.py

common/test/acceptance/tests/lms/test_lms_gating.py

...s/course_api/blocks/transformers/tests/test_milestones.py

lms/djangoapps/gating/api.py

lms/djangoapps/gating/signals.py

lms/djangoapps/gating/tasks.py

lms/djangoapps/gating/tests/test_api.py

lms/djangoapps/gating/tests/test_integration.py

lms/templates/_gated_content.html

openedx/core/lib/gating/api.py

openedx/core/lib/gating/tests/test_api.py

...ures/course_experience/tests/views/test_course_outline.py