Bug 110998 [Problems] Remove the working set selection and switch to using global working sets
M2 We need to remove the working sets option in the filter and switch to using the current list of working sets. We should move this to a preference that says only "Use Working Sets"
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerFilter.java
private static final String TAG_ENABLED = "enabled"; 
	private static final String TAG_ON_RESOURCE = "onResource"; 
	private static final String TAG_SELECTED_TYPES = "selectedType"; 
	private static final String TAG_WORKING_SET = "workingSet"; 
	private static final String TAG_TYPES_DELIMITER = ":"; 
	/**
	 * New attribute to handle the selection status of marker types.
	 */
	private static final String TAG_SELECTION_STATUS = "selectionStatus"; 
	/**
	 * Attribute status true.
	 */
	private static final String SELECTED_FALSE = "false"; 
	/**
	 * Attribute status false.
	 */
	private static final String SELECTED_TRUE = "true"; 
	public static final int ON_ANY = 0;
	public static final int ON_SELECTED_ONLY = 1;
	public static final int ON_SELECTED_AND_CHILDREN = 2;
	public static final int ON_ANY_IN_SAME_CONTAINER = 3;
	public static final int ON_WORKING_SET = 4;
	static final int DEFAULT_ON_RESOURCE = ON_ANY;
	static final boolean DEFAULT_ACTIVATION_STATUS = true;
	protected List rootTypes = new ArrayList();
	protected List selectedTypes = new ArrayList();
	protected IWorkingSet workingSet;
	protected int onResource;
	protected boolean enabled;
	private MarkerTypesModel typesModel;