Currently PasswordManagerProxy in the Settings WebUI uses a callback based API to get the results of async operations. This bug serves to track the effort to migrate this to a Promise based API, for example as done in https://crrev.com/c/1394592.
Once the extension API supports promises as well (see https://crbug.com/328932), a similar change should be applied to passwords_private.idl and associated code.
Comment 1 by jdoerrie@chromium.org
, Jan 7