Bug 7235 [Contributions] Need dispose() for action delegates
bundles/org.eclipse.jface/src/org/eclipse/jface/action/SubContributionItem.java
public boolean isVisible() {
	return visible && innerItem.isVisible();
}
/* (non-Javadoc)
 * Method declared on IContributionItem.
 */
public void setParent(IContributionManager parent) {
	
	
}
/* (non-Javadoc)
 * Method declared on IContributionItem.
 */
public void setVisible(boolean visible) {
	this.visible = visible;
}
/* (non-Javadoc)
 * Method declared on IContributionItem.
 */
public void update() {
	innerItem.update();
}
/* (non-Javadoc)
 * Method declared on IContributionItem.
 */
public void update(String id) {
	innerItem.update(id);
}
}