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/TitleAreaDialog.java
* @since 2.0
     */
    public void setMessage(String newMessage, int newType) {
        Image newImage = null;
        if (newMessage != null) {
            switch (newType) {
            case IMessageProvider.NONE:
                break;
            case IMessageProvider.INFORMATION:
                newImage = JFaceResources.getImage(DLG_IMG_MESSAGE_INFO);
                break;
            case IMessageProvider.WARNING:
                newImage = JFaceResources.getImage(DLG_IMG_MESSAGE_WARNING);
                break;
            case IMessageProvider.ERROR:
                newImage = JFaceResources.getImage(DLG_IMG_MESSAGE_ERROR);
                break;
            }
        }
        showMessage(newMessage, newImage);
    }
    /**
     * Show the new message and image.
     * @param newMessage 
     * @param newImage
     */
    private void showMessage(String newMessage, Image newImage) {
        
        if (message.equals(newMessage) && messageImage == newImage) {
			return;