As per the request of the AwG team, we'd like to make autofill on Android to be opt-out to maintain parity with the existing Android Platform. In the long term, we might want to send all the information in the widget hierarchy to the autofill service. For now the following info of a text field should be sent to get a reasonable detection accuracy:

• placeholder text ([autofill] opt-out instead of opt-in #86312)
• text
• size & coordinates (should be implemented already)
• developer identifier (not sure how)
• input type (already available on android & iOS, should be trivial to add)
• autofill type (current autofill is for text only)