SizeWatcher delegate method
@param {SizeWatcher} sizeWatcher
function(sizeWatcher) {
			var watchedElement = sizeWatcher.getWatchedElement();
			if (sizeWatcher === this._adobeBlankSizeWatcher) {
				this._adobeBlankLoaded(watchedElement);
			} else {
				this._elementSizeChanged(watchedElement);
			}
		}