Merge "Merge "Overall improvement on Autofill javadocs for autofillable APIs." into oc-dev am: 9be8c96918 am: 4d579eacec" into oc-dr1-dev-plus-aosp
am: 5f7c800fbf

Change-Id: I2f77dcf6b8a47ca5d4dbd036303d6c4ea92a633c