As proposed, I renamed KHTMLPart to Frame. For now, I named the KQW-specific subclass MacFrame.
Created attachment 5569 [details] patch to do the rename
I did this change by repeatedly applying Xcode's project-wide search and replace in various ways until it built (and using svn move to effect the file renamings).
Comment on attachment 5569 [details] patch to do the rename Lets do it! r=me
This has been landed