tree 530b43151a856c35a29ceabe88092ce858761647
parent 1a9626f056d253aa25fca561010624c463bbf9a9
author Xiyuan Xia <xiyuan@google.com> 1440540297 -0700
committer Xiyuan Xia <xiyuan@google.com> 1440707755 -0700

Fix ChoosePat/Pin/Pwd crash from async task

Use a retained worker fragment to track the asynchronous
save-and-finish task so that ChoosePattern/Password activity
is properly dismissed after a configuration change.

Bug:23424884
Bug:23521530
Change-Id: I328022c1603cfb0f6812cd8aa7916ae7b72c9950