The accessory currently isn't cleaned up as soon as it should. It also persists when it's not relevant anymore (like in fullscreen mode or when the user stopped editing a field).
Therefore, ensure that
- switching a tab hides it temporarily
- entering the fullscreen mode hides it temporarily
- not focusing any input fields hides it temporarily
- it is destroyed/hidden when the native information provider is destroyed (i.e. PasswordAccessoryBridge)
Comment 1 by fhorschig@chromium.org
, Jun 18 2018