In order to better asses the impact of SyncTransport, it would be
useful to log some key Autofill metrics depending on the sync state
the user is in.
Those metrics are
Card saving metrics (shown, accepted, etc)
Suggestion CTR
Autofill disable rate.
The suffix to be added are
SignedOut
SignedIn
SignedInAndSyncTransport
SignedInAndSyncFeature
Comment 1 by jkrcal@chromium.org
, Nov 19