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/MarkerView.java
/**
	 * Load the filters preference.
	 */
	private void loadFiltersPreferences() {
		String preference = IDEWorkbenchPlugin.getDefault()
				.getPreferenceStore().getString(getFiltersPreferenceName());
		if (preference.equals(IPreferenceStore.STRING_DEFAULT_DEFAULT)) {
			createDefaultFilter();
			return;
		}
		StringReader reader = new StringReader(preference);
		try {
			restoreFilters(XMLMemento.createReadRoot(reader));
		} catch (WorkbenchException e) {
			IDEWorkbenchPlugin.getDefault().getLog().log(e.getStatus());
		}
	}
	/**
	 * Update for filter changes. Save the preference and clear the enabled
	 * cache.
	 */
	void updateForFilterChanges() {
		XMLMemento memento = XMLMemento.createWriteRoot(TAG_FILTERS_SECTION);
		MarkerFilter[] filters = getUserFilters();
		for (int i = 0; i < filters.length; i++) {
			IMemento child = memento.createChild(TAG_FILTER_ENTRY, filters[i]
					.getName());
			filters[i].saveFilterSettings(child);
		}
		StringWriter writer = new StringWriter();