Add optional callback to adjustHeight, adjustWidth, and adjustSize APIs

[mmarum-sugarcrm]

Original author: [email protected] (December 17, 2012 14:36:29)

Since a container does not have to allow the gadget view port to grow in size and adjustHeight, adjustWidth, and adjustSize all execute asynchronously it would be useful for these APIs to have optional callbacks to let the gadget know when the container is done doing the work. In the callbacks the gadgets can then check the view port size and figure out if they were given more size or not.

Original issue: http://code.google.com/p/opensocial-resources/issues/detail?id=1330