src: change SetEncodedValue to return Maybe<void>
With recent versions of V8, it is not necessary to use Maybe<bool> anymore. This changes SetEncodedValue() to return Maybe<void> instead.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
With recent versions of V8, it is not necessary to use Maybe<bool> anymore. This changes SetEncodedValue() to return Maybe<void> instead.