New Autofill API: FillRequest.FLAG_COMPATIBILITY_MODE_REQUEST.

Test: atest VirtualContainerActivityTest VirtualContainerActivityCompatModeTest
Test: m -j doc-comment-check-docs # and checked HTML

Fixes: 112111649

Change-Id: I2390fd78e330c10b08394c50f14f88211e5f2d80
3 files changed