Use OnceCallback on Mojo interfaces in //components/chrome_cleaner
This CL flips `use_once_calback` flag on the Mojo code generator, and
fixes all compile errors after it. After this CL, Mojo interfaces in
//components/chrome_cleaner starts using base::OnceCallback instead of
base::Callback on its return value handling.
The migration recipe was:
- Convert pass-by-ref callback objects to pass-by-value.
- Use std::move() to forward it to other consumer, or to invoke it
- Handle wherever copies are required manually.
- Check if the conversion doesn't change the semantics. As the transfer
and invocation clobber the callback object, care about use-after-move.
It's considered safe to consume almost scoped-out callback.
1 file changed