chromium/third_party/blink/manual_tests/directory-drop-on-view.html

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    <title> 
       Manual drop test
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    This tests that unknown file types are handled correctly when dropped in the window
    <ul> 
        <li>
            Drag a file that WebKit doesn't recognise -- eg. a disk image, tarball, etc.<br />
            WebKit should cause a Finder window to open, with the dropped file selected.  
        </li>
        <li> 
            Attempt to drop a directory onto the WebView.<br />
            The drag should not be accepted, and the drag cursor should be the standard disallowed drag cursor. 
        </li>
    </ul>
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