we have a link to the client which is enough to find the views.
Also there was some cases where the windowToken was not updated
properly. This is moot now.
Also: Read a array of views from the client to speed up the
client<->AutofillManager communication.
Fixes: 38070352
Test: CtsAutoFillServiceTestCases
1 Started autofill, saw fill UI
2 Home button
3 Kill activity in background
4 Recents -> back to activity
5 Saw fill UI restored
Change-Id: I7c2c9411204fa5d65867efae9b7296399121c3a2
134cee27b8