Bug 221521 [Markers] New markers API needs to be pared down
We have too much API in some of the new classes and they can be moved to internals
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkersPropertyPage.java
IWorkbenchPropertyPage {
	private Text descriptionText;
	private IMarker marker;
	Combo priorityCombo;
	Button completedCheckbox;
	/**
	 * Create a new instance of the reciever.
	 */
	public MarkersPropertyPage() {
		super();
	}
	protected Control createContents(Composite parent) {
		
		Object element = getElement().getAdapter(IMarker.class);
		IResource resource = null;
		if (element != null) {
			marker = (IMarker) element;
			resource = marker.getResource();
		} else if (resource == null) {