Merge "Revert "Wrapping folderLisners with weak reference, and storing it as an array"" into ub-launcher3-calgary
am: 5b83d6ce8f

* commit '5b83d6ce8f7391aab67b7c53d972380fe0762ced':
  Revert "Wrapping folderLisners with weak reference, and storing it as an array"

Change-Id: Ie82f664b8562d96b73a57b0f88a59f8d0184133d