Dragging text from UI widgets

1. Select some text in the address bar.
2. Drag the selection to the following textarea, and release it:
3. Pass if:
   1. A visible representation of the selected text appears to be dragged.
   2. The mouse cursor shows that the drop will be allowed over the textarea.
   3. The selected text appears in the textarea.
4. Repeat the test with other UI text inputs, including ones that allow linebreaks (if any).