Bug 130631 Sliding job should be a system job
20050306 The title are dialog sliding job is showing up in my progress view. It should be a system job.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/ControlAnimator.java
* A constant denoting the CLOSED animation state of 
	 * a control (value is 0)
	 */
	public static final int CLOSED = 0;
	/**
	 * A constant denoting the OPENING animation state of 
	 * a control (value is 1)
	 */
	public static final int OPENING = 1;
	/**
	 * A constant denoting the OPEN animation state of 
	 * a control (value is 2)
	 */
	public static final int OPEN = 2;
	/**
	 * A constant denoting the CLOSING animation state of 
	 * a control (value is 3)
	 */
	public static final int CLOSING = 3;
	
	private int state = CLOSED;
	
	/**
	 * Displays or hides the given control.
	 * 
	 * @param visible <code>true</code> if the control should be shown, 
	 * 		  and <code>false</code> otherwise.
	 * @param control the control to be displayed or hidden.
	 */
	public void setVisible(boolean visible, Control control){