Switch from HashSet to set backed by a ConcurrentHashMap to prevent ConcurrentModificationExceptions. Bug:16898286 Change-Id: I5d94b403469e98c5f5431fc1d0ad020985100cfd
Switch from HashSet to set backed by a ConcurrentHashMap to prevent ConcurrentModificationExceptions. Bug:16898286 Change-Id: I5d94b403469e98c5f5431fc1d0ad020985100cfd