Two test cases, both use dataTransfer.dropEffect = "none" to prevent drop evenst. Test that 1) when there are no drop targets on the page, dropping generates dragleave events only, and that 2) dragleave events only are generated when dropping on a drop target.
Created attachment 39049 [details] patch
Isn't this already covered by: http://trac.webkit.org/browser/trunk/LayoutTests/fast/events/prevent-drag-to-navigate.html ?
Comment on attachment 39049 [details] patch why are these in the http test suite? also what do these cover the fast/event/drag-and-drop.html does not?