[Mac] Use [NSCursor operationNotAllowedCursor] for CSS no-drop as well as CSS not-allowed
Created attachment 100883 [details]
Comment on attachment 100883 [details]
We have a number of manual tests for cursors, maybe it makes sense to add a subtest to one of those.
Committed r91040: <http://trac.webkit.org/changeset/91040>