We have ProcessID processIdentifier() (which returns a pid) and processIdentifier() which returns a ProcessIdentifier (which is a ObjectIdentifier<ProcessIdentifierType>). Let's call the first function processID().
<rdar://problem/110683138>
Pull request: https://github.com/WebKit/WebKit/pull/14901
Committed 265123@main (0db1f4a3e74b): <https://commits.webkit.org/265123@main> Reviewed commits have been landed. Closing PR #14901 and removing active labels.