FrameLoader::FrameProgressTracker::progressCompleted() does not need to request a pageID from the client. It can merely pass the Page object and the upper layers can very easily get the identifier of that page.
Created attachment 377916 [details]
Comment on attachment 377916 [details]
Clearing flags on attachment: 377916
Committed r249452: <https://trac.webkit.org/changeset/249452>
All reviewed patches have been landed. Closing bug.