tree dc7f9d9b708bbb46ce86585f17e28ec15eda63d5
parent 5c141831d4ec6f1fd109fb60332aa3baa6eea03b
author Colin Alworth <niloc132@gmail.com> 1384150858 -0600
committer Brian Slesinsky <skybrian@google.com> 1389063694 -0800

In devmode, call plugin.disconnect() on window unload

This change hooks up the plugin.disconnect() call to the window
unload callbacks. (Notice that in both cases this actually hooks
them to an iframe window, not the parent window itself.)

If the plugin doesn't have a disconnect() method (true today)
then it does nothing.

This is a prerequisite for fixing the Firefox memory leak.
For the next step, see:
https://gwt-review.googlesource.com/4680

Change-Id: Iff9f366bc7e34d5d2bb4098a49e0aaa3ca0aeb34