Description: Fire drop event during the drag and drop processing
| Test Result | Test Assertion | 
| Manual | Test passes if if the word "PASS" appears to the left after following the steps below. 
                    Steps: 
                     
 | 
http://dev.w3.org/html5/spec/dnd.html#drag-and-drop-processing-model
If the drag operation was a success, if the current target element is a DOM element, fire a DND event named drop at it.