> Correct missing touch event handler de-registration for nested Documents and DOMWindows
> Reviewed by James Robinson.
> Correcting case by which a nested DOMWindow wouldn't clean up its event handler references
> on its Document when removeAllEventListeners was called. Also, correctly propagating this
> from a nested Document to its owner Document.
> Updating fast/events/touch/touch-handler-count.html to catch this bug.
> * dom/Document.cpp:
> * page/DOMWindow.cpp:
> * fast/events/touch/touch-handler-count-expected.txt:
> * fast/events/touch/touch-handler-count.html: Adding case of nested DOMWindows with event handlers.