Bug 120727 Info text area does not appear in PopupDialog
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/PopupDialog.java
viewMenuButton.addSelectionListener(new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				showDialogMenu();
			}
		});
		viewMenuButton.addDisposeListener(new DisposeListener() {
			public void widgetDisposed(DisposeEvent e) {
				menuImage.dispose();
				menuImage = null;
				disabledMenuImage.dispose();
				disabledMenuImage = null;
			}
		});
	}
	/**
	 * Fill the dialog's menu. Subclasses may extend or override.
	 * 
	 * @param dialogMenu
	 *            The dialog's menu.
	 */
	protected void fillDialogMenu(IMenuManager dialogMenu) {
		dialogMenu.add(new GroupMarker("SystemMenuStart")); 
		dialogMenu.add(new MoveAction());
		dialogMenu.add(new ResizeAction());
		if (showPersistAction) {
			dialogMenu.add(new PersistBoundsAction());
		}
		dialogMenu.add(new Separator("SystemMenuEnd")); 
	}
	/**