Bug 138651 [Markers] Bookmark, problem and tasks view don't restore column widths
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/TableView.java
}
			}
			return values;
		}
		return null;
	}
	private int restoreVerticalScrollBarPosition(IMemento memento) {
		if (memento == null) {
			return 0;
		}
		Integer position = memento.getInteger(TAG_VERTICAL_POSITION);
		return (position == null) ? 0 : position.intValue();
	}
	private int restoreHorizontalScrollBarPosition(IMemento memento) {
		if (memento == null) {
			return 0;
		}
		Integer position = memento.getInteger(TAG_HORIZONTAL_POSITION);
		return (position == null) ? 0 : position.intValue();
	}
	/**
	 * Get the IWorkbenchSiteProgressService for the receiver.
	 * 
	 * @return IWorkbenchSiteProgressService or <code>null</code>.
	 */
	protected IWorkbenchSiteProgressService getProgressService() {
		IWorkbenchSiteProgressService service = null;
		Object siteService = getSite().getAdapter(
				IWorkbenchSiteProgressService.class);
		if (siteService != null) {