Reviewed by Eric Carlson.

        FullScreen: Handle entering full screen security restrictions
        https://bugs.webkit.org/show_bug.cgi?id=56264

        * fullscreen/full-screen-css.html: Use runWithKeyDown.
        * fullscreen/full-screen-remove-ancestor.html: Ditto.
        * fullscreen/full-screen-remove.html: Ditto.
        * fullscreen/full-screen-request.html: Ditto.
        * fullscreen/full-screen-twice.html: Ditto.
        * fullscreen/full-screen-test.js:
        * fullscreen/full-screen-iframe-allowed-expected.txt: Added.
        * fullscreen/full-screen-iframe-allowed.html: Added.
        * fullscreen/full-screen-iframe-not-allowed-expected.txt: Added.
        * fullscreen/full-screen-iframe-not-allowed.html: Added.
        (runWithKeyDown): Added.  Wraps the command in a keyDown/keyPress
            listener.
        * platform/mac-wk2/Skipped: Added new tests to skipped list.
        * platform/qt-wk2/Skipped: Ditto.
2011-03-13  Je...