Restore hidden text on Popup close

When handleClose is called with no animation, overridden closeComplete gets fired before mOpen is set to false inside the super class. This results in getOpenView(launcher, TYPE_ACTION_POPUP) returning self and breaking text visibility restore.

Bug: 183713889
Test: Long press on allapps/workspace item to show PopUp under it; on popup open, capture screenshot, start a sharing activity, return to launcher and verify popup dismissed and text restored.
Change-Id: Iae8d2c73e4b7f57708468bf47bb0983a30ebbddc