Only IDs beyond LAST_APP_ACCESSIBILITY_ID can be reliably used for
autofilling. Other ids might change occasionally.
All Views attached to activities get usable IDs. Hence if a
ContextWrapper wraps an activity forward the goodness.
Also make sure that we don't accidentially autofill an unsafe view.
Test: Before the messaging handed out unusable Ids because it uses a
Contextwrapper. Now it hands out good ideas (accoring to dumpsys)
CtsAutoFillServiceTestCases
Bug: 38070352
Change-Id: Ibc72c84d77197019939abd231e8960988af7a592
ff6d6d9492