Add throwing InvalidDisplayException from addView.

Throw an InvalidDisplayException to addView if the display being
added to has been removed. Handle this exception in Dialog.show()
by removing the view after it has been added and rethrow the
exception from there.

Add javadoc to ViewManager.addView and Presentation.show explaining
the new exception and how best to handle it.

Bug: 7368565 partially fixed. It remains for the Videos app to
handle Presentation.show throwing the InvalidDisplayException.

Change-Id: Ib4303c9b3f7bf7a0cfa95d19bd60a0c128658c48