Merge changes from topic "caitlinshk-csi-updateQsExpansion" into udc-qpr-dev

* changes:
  [CS][Disable] Move CS#updateQsExpansionEnabled to ShadeInteractor.
  [CS] Split QuickSettingsControllerTest into a base file and test file.
  [CS] Define an #alwaysCollectFlow method that can be used from Java.